Every game needs refinements, no game is perfect.
Aaaaaaaaaaanyway...
Some ideas from a fish to improve game:
Allow for lvl 20, 25 and 30 cap. (30 for those that have Dead Money.)
New traits and "better" traits, both with it's benefits as well as it's drawbacks.
Make gameworld feel more alive with our level, let Powder Gangers upgrade their equipment at lvl 15, have super mutants appear occasionally outside of Black Mountain/Jacobstown after the quest Crazy Crazy Crazy, make general wild-life such as Cazadors, Nightstalkers and Giant Radscorpions have certain % chance of spawning in certain areas after we reach a certain level. (The game becomes too predictable with completely static spawns.)
Have all factions, that make sense to do this, send assassination squads/mercenaries/revenge seekers after us if we become vilified with them, that includes Khans, PG's, casino groups, Kings, Boomers and BOS.
Maybe add a couple of new creatures that aren't bullet sponges? How about a red radscorpion, the size of a small one, that has an incredibly potent poison?
Or one that can paralyze the PC for 10 seconds? (Paralyze effect does not stack and after 10 seconds is passed we can't be paralyzed for 5 seconds.)
Just make the game-world feel more alive, more challenging.
(And weightaholic, we've already gone through this one the other thread, I'm not going to have a debate about "don't use it" again, if you don't like this idea, fine but the discussion is not happening again because it leads nowhere.)
Fix some perks and tweak them, make some perks have 6 str OR! 6 end, it's annoying to have to have two stupid requirements, should be enough that I have 90 unarmed without having 90 melee...
Fix bugs.
Fix bugs.
Fix glitches.
Fix freezing.
Fix bugs.
Allow the option to have six with "any" prosttute and/or stripper inside Gomorrah.
More Legion quests, if there is a Legion DLC then that's great! But... For the love of god add more sidequests to the "real" game and not just the DLC area in that case.
More Legion merchants, one at Cottonwood and one at Nelson.
Allow for slave runs at Legion.
I'll come back with some more later on.