Well i guess i have to bring this up.
Souls series. Like Dark Souls. Although i don't have a pleasure to play DS2 because of release date for pc, i must point out however, that in Dark Souls 1/2 you can use any armor you like and use any weapon. All of them are upgradeable, so you have your hands free to build themed characters, like Balder Knights for example or Artorias full set. and many others really. You can even play and do that very well with initial gear, even if it's just a rags.
So in DAO you could have some variety in armor and weapons for the end game. In DA2 however, you are very much stuck with the Champion set. Which is sad because in my opinion starter armor for a warrior class is the best looking armor in entire game.
So it would be really nice to have variety in weapons and armor in DAI, it also would be nice to have some customization options like - this armor is mine and mine alone. But... i don't know some of the features of the game is that players will have customization options for arsenal and keep.
You know in ME3 for exampe bonuses from different armor types are not that great(i mean do not have that much of impact on gameplay), so you can play the game with armor set you really like despite the fact that this particular set may not suit the class of your character.
More options is always welcome, and to be stucked with one and only armor set for endgame is not really fun.