-God of war reboot after the third one. 
They reboot the god of war games but using Japanese mythology, you play as or agaisnt Bisahmonten (Japan's god of war}
maybe you play as a samurai given the power of Bisahmonten or something.

-puzzle quest but with trivia 
I love trivia games like BUZZ and they can suck to play by yourself. I think it would be awesome if there was a puzzle quest like game but with trivia.
anwser the question right to attack, anwser quickly and right for critical hit, spells would be like phone a friend or what not. I think that would be cool
 
-dragon age or mass effect game set in the warhammer or WH40k universe 
I think that would be fucking awesome play as a choas space marine or what not.
 
that's all for now more to come later