The Last of Us has done a lot for every faction though - Marlene and Ellie and Tess for women. Ellie especially has paved a path for women that other notable characters have helped (Jodie, Lara, even Lightning) that has finally said and done something about the horrid treatment of women in games.
I hope to see more gay/bisexual/asexual beings in video games and their internal struggles. Kanji from Persona 4 was another great example of this. I'm not really into the Bioware orgy methods (even if they are beyond satisfying).
Edit: I broke up with Miranda so I could get some of Kaidan's d tho.