Personally, I hope they stay away from "innovations". I don't care about motion controls or tablet controllers. For me, what made me go with a PS3 when I was deciding on a console was Sony Worldwide Studios. As simple as that. I want more games from Naughty Dog, Sony Santa Monica, and the rest.
If they're going to innovate, then I want it to be with PSN. PS+ is pretty darn innovative now, and I'd love to see it evolve and improve. Sony took the social aspect of core gaming too lightly this generation, and though I don't personally care about things like cross-game chat, Microsoft definitely scored points there.
If there is anything that has encouraged me about PS4 development, it's that, supposedly, Sony heavily consulted with their developers at SWS. That can only be good. I'm expecting a better gaming environment from the start this time. I think they had too many Japanese businessmen and hardware experts in the kitchen last time, and too few game and software developers. I think the PS4 will end up being more open-ended and accessible.
