LBP Karting was easy for me to get into since I love Mario Kart, and basically that's how I played it. While I love the LBP games, I don't really get into the user-created stuff, I just play the game as the platformer/karting game it is.
I almost said I wanted a God of War game, but I kind of don't (unless they want to release God of War: Betrayl as a PS Mini game

). I would be thrilled if they announced one, and I'm sure I'd get it if it was on the PSN (I might even buy it retail), but honeslty I played both of the PSP God of War games on the PS3, and even though the PSP games looked awful on the PS3, I'm not sure I'd enjoy playing a God of War title on a handheld. Though, I will say, I would be thrilled to see that they're not giving up the franchise. God of War: Ascension made me worried that they painted themselves into a corner with 3 and were doing one last hurrah. I really hope that's not the case, even if the only option is to do stories that come in between the other stories.
I wouldn't mind a Bioshock for the PS Vita, re: shooters (Bioshock is a FPS right?) but TBH I don't want it to be Bioshock Infinite. I'd like one that was made for the Vita. I know for many (myself included) it's good to have the option for both systems, and I know not everyone has a PS3, and I know some people prefer the handheld, but I have to say that for purely selfish reasons, I hope that a BIoshock announcement would be something made specifically for the Vita.
Infamous for the Vita would be cool too. I haven't played Infamous 2 (even though I have it cause of PS+) because I haven't played Infamous, and while I'm not going to change my point of view on that, I'd probably play a PS Vita Infamous even if I hadn't played any of the PS3 ones.