So just to throw in another idea: perhaps a raider group/faction where the player could actually participate in raids on caravans or something.

That's a good idea.

I would love to be able to join a raider gang and I am currently working on an idea for a giant trading hub of a city where two powerful caravans are trying to take over all of the business of. You could work as a caravan guard for your side to protect them against the other caravan company's raiding parties (you can also join a raiding party).

That could work well if Fallout 4 has Skyrim's radiant system (such as hunting down bounties in random places).

Or perhaps more broadly, just the ability to participate in more generic actions for a faction that you joined.

Join a mercenary group? Go with them on a few missions to earn money.

Caravan group? Help guard caravans.

Come to think of it, the originals did these fairly well. It just needs to be re-implemented and perhaps tweaked a bit.

Slaver group? Slave raids (not just lone capturing like in Fallout 3) more like what occurred in Fallout 2.

what if you are a robot designed by the U.S military before the war? you were programmed by someones memorys and personality? (your choice)

In skyrim you were dovahkiin and fallout 4 a robot? i can just imagine the ending where you lost your arm fighting a super mutant or something and then your crawling.

CUTSCENS?: i know that it is a RPG but i want to see cinematic stuff i am actually tired of shooting something and PRETENDING that hey that was cool. Mabye put a twist on V.A.T.S. Slow motion is needed

- More cinimatic events, mabye a slow motion explotion or you dodging a rocket
-Being a robot, a unique 1 that looks like a human.
-Replay value, different robot types? skyrim tbh didnt have a replay value.
-leveling like skyrim but with more perks, skyrim had lots of good perks, training one skill then getting bored of it?
- In skyrim you ride horses.. in fallout we ride BRAHIMS!? how sick would that be?
- bigger main story line but still engaging
- in a wasteland you tend to get thirsty, but if you are a robot you cant? energy cells
- better companions less dull? mixing in with cinimatic moments where your companion mabye takes the bullet for you? more emotional bonds i guess.
-in skyrim you have a spell that shows you the path to your objective, if your robot mabye having a speacial robotic attrabute?
-your own house that you make
-

- finnaly LOTS of different type of wepons, i wanna see loads of guns, 1 handed 2 handed. Mabye a built in gun in your robotic ass? Upgrading the guns, increase firepower, "an endurance for your wepon"

http://www.gamesas.com/topic/1355806-fallout-4-speculation-suggestions-ideas-thread-55/