Well, I don't want to go too offtopic but, the reason for the definite ending is ending sliders.
Remember beating Fallout 3? And the ending sliders came?
Those were not particularly well written when compared to fallout 1 and fallout 2.
But since this game is made by former Black Isle employees the ending sliders are going to be more important.
So the reason for not being able to play after the final quest is because of them.
They will show what will happen to the world you've been in.
Some things will happen a month from the final quest, some will happen years afterwards.
Some even implying stuff to come over the next 50 years.
It's not easy to just "continue" after the final quest.
So I doubt they'll release a DLC for it. If the ending sliders are good then there's no need for post-final quest gameplay.
If they're crap on the other hand then I don't care.
Then it's fail on Obsidians part and they can break the game by releasing another Broken Steel for all I care.

But as I said, this is gettin offtopic.
If you wonder why it's a good reason or want to discuss why it's a bad reason use http://www.gamesas.com/index.php?/topic/1115801-should-nv-have-an-ending/.

Strong man: You can hold more weight (Great for hardcoe mode..... Ammo can get heavy)
Over the Stove: Cooking your own food gives the food better benifets
Provisioner: You can reduce radiation on food and water by 50%
Knowledge of the wilderness: (Rank 1) Cactus can be cut open and can give you water
Knowledge of the wilderness: (Rank 2) Wepons do more damage to Animals
Skinner: Get more hides per animalerks

Outfit Perk
Buisness Suit: Persuaison is 15% Easier

Other Perks
Negative Perks
Drugie: After taking to many drugs you become adicted and are alot hungrier then usual.
Drunk: You drank to much tonight... you start to see everything in a blur.... after 4 hours of being drunk side affects reduce health for 12 hours
Posotive Perks
Good Eye: Can spot a location from 500 yards away
Dozer: Gets a better sleep (+5 Perception for 12 hours after you wake up)
Poison Dabler: Can poison bullets

We know if you dress in a faction's uniform, only guard animals and elites will detect your ruse. Would be nice if the final level of the "Animal Friend" perk prevented the guard animals from detecting your presence, leaving only elites. :ninja:

o really i didnt know that... you must have been studing the game i have to an extent but i want everything to be a surprise to me! But yea that would be a good thing. So then i could try and sneak into an enemy compund and the animals wont alert the guards cause they, LOVE ME

good point, Broken Steel is my favorite DLC for FO3, and always will be, i think they should have done the same thing to New Vegas, except it wouldnt be a DLC, it would actually be in the game, Im really dissapointed that Obsidian/Bethesda didnt do that to the story, I personally think it was an ignorant and stupid choice not to do that :banghead: werent there enough people that loved broken steel that bethesda would decide to just add something like that to new vegas?
anyway, lets stay on topic, this is about perks, not the story.

It was my idea.........Hgu, and i thought of some others

Leadership!- whenever you have companions with you they can take and deal out 1/3 as much damage
Armyman- whenever you are wearing combat or power armor your defense goes up by 4
Creepy- Sneak increased to max, at the cost of female characters having negative responses towards you

Merchant: when selling you get more money per item
Hometown: Your hometown sells you discounted prices
Crush: Blunt wepons do 10% more damage
Blackmail: Dig up info on someone and use it against them (Add new speech Blackmail)
GraveDigger: Brutal killer (Lowers Karma)
People Person: Goody-Tushoo (Raises Karma)

Trained Soldier
Increases reload speed and accurcy with all automatic weapons. (Battle Rifle, Assault Rifle, etc)
Increases End 1 and STR 1 as long as you have a 90% full inventory.
Grenades do 10% more damage.

A lot for one perk perhaps but hell, we only get 15 right?
Best make them count for it.

Dealing With Pain.
You get 5 DT when you have 30% health left.
Your limbs gets 20% more resistance.
When your health reaches 10% you get a temporary boost of health up to 20% again for 10 seconds.

Brute
You do an additional 7 points of damage to both unarmed and melee attacks.
You get 20hp bonus.
You get a permanent 3 DT increase.

Chameleon
Stealth-boys lasts 30% longer.
Their invisible field is increased with 10%
Using a stealthboy during the day no longer has any penalties, it works just as well during the day as during the night.

Hacker- You can hack compuets that are one teir ahead of your science skill (with 50 science you can hack hard)
Extra Pockets- You can quick select more weapons/items than normal
Expert Drug addict- Chems are easier to find and last twice as long

I just hope they have a Nuclear Anomaly perk like from Fallout 3,
that perk officially made the game for me XD

Ears like a cat, eyes like a rodent - Perception goes up by two points, but your range of sight drops.

Sunny And Smiling - In daylight your charisma goes up as well as your speech

Tastes Bad, But It's Good For You - When you eat any food, you won't receive too much radiation from doing so

Gone For The Tenders - Your skill with VATS improves and you can now hit weak points on any opponent a lot easier

Not exactly the Fonz - When wearing clothing like leather coats/leather armour, plus sun glasses, your charisma improves

I'm not evil, I just have the better aim - While holding onto a neutral status, your skill with small guns will improve

Dr. Strangelove's assistant- Adds 15 points to explosives and any radiation you take in is decreased by 30%

Uhoh- If you have extremely low health you have an unlimited clip, when you heal this goes away

One night stander- Whenever you sleep with a prosttute, (be it human or not) all your S.P.E.C.I.A.L attributes increase by 1 for three days

unfortunately most of these aren't very inventive. Most just add extra damage or some other type of skill augmenter to base stats. If they were to add more Perks, I'd want something a lot more unique.

Seems too powerful.
Unlimited clip for fatman or GMG = god-level.
Hell, I'd never heal myself with that perk, just go around and rain grenade fire over everything.

And around 300 caps to raise entire SPECIAL for 3 days seems a bit much as well.

Xarnac, I don't think it's that easy to come up with something that's not stat raising and completely unique.

You got Robo Karma - Robots no longer attack you and instead self destruct as soon as they see you

Friends with the Madhouse - Raiders don't attack you, instead they run in fear from you

A little backhander - You win at gambling a lot easier, with a risk of being caught if you don't do things discreetly when slipping a bribe

A little extra - If your karma is evil, you can poison any water you give to people

Why not?... I did. Instead of typing everything you think of, take a minute and put some thought into it. Who would want these generic perks? I wouldn't. I'm not trying to be mean but whats the point of thinking up some new perks if there not very good?

Hmm, yeah but it doesn't seem to serve any purpose.
Well, it's great for roleplaying a crazy person but there's no true benefit for it.

And while some of my perk suggestions might be stat-centered they still tend for specialization.
An isn't specialization also good for roleplaying?

It would give you alternate ways to complete quests, it can also give you tips and info. Maybe even show you were some hidden caches are around the waste. Like an effective "Child at Heart" perk. The writers could have a field day writing for different irradiated animals.

Example: Raider dogs are guarding "X area", you outwit/bribe/intellectually [censored] said canines... and hilarity ensues...

well yeah but come up with another one

EDIT: plus you would have to have a [censored]load more dialogue implemented

Ok heres another

Parasitic Twin: After a brush with an irradiated 200 year old burrito, a http://en.wikipedia.org/wiki/Parasitic_twin has grown out of your stomach! Now when enemies enter a certain radius around the player your asymmetrical counterpart unleashes a devastating melee attack from your spleen.Your charisma permanently drops 2 points and you have to eat twice as much in hardcoe mode.

The generic Hero- Automatically put's your Karma to good, stores charge less, and your reputation is increased for every town

How about a perk that makes your unarmed attacks a little less.....incredibly boring? Like incorperate some kicks or something, im tired of the old "R1, R1"
"Lazy punch, Dude, you could use a nap punch"

I got it!
You're sixy and you know it.
You can now use your looks to get discounts or for unique dialogue options with NPC's that are interested in your six.
Those who are not will think you're a [censored].

Determined eyes.
Your eyes have power.
Looking someone else straight in the eyes will make them feel weak.
You can with ease convince people to let go of their precious knowledge to you even with a low CHA and average speech.
Some NPC's though will be rather pissed off at you for staring at them with this perk and will attack you if you try to stare them down.

These good enough Xarnac?

you sure anybody would want that? Also, not sure your parasitic twin would be stronger than you are, there's original, and there is making sense

It wouldn't have to be as powerful as you. It wouldn't be exceptional weak either. It would be a "Activate and forget" type buff. Does decent damage in a last line of defense scenario. also its a great story to tell the grand kids.

*Remembers the parasitic twin Carnie killer from X-Files...

If a parasitic twin can chase Mulder and Scully around, then I think it can take a swipe or two at a ghoul thats too close for comfort.

People would rather see this, than; Perk makes "X" type of weapon do more damage.

Those border on the precipice of mediocrity and the mundane.

plus I see this as a perk attained by eating the "Irradiated Burrito", as oppose to taking it at a level up.