I really want Nintendo to change the name of the Wii U. I've been a long-time fan of Nintendo's products, but I hated the Wii, and I can't stand to see their next system named after what is (In my opinion) the worst system that they've made yet. Oh, and I'm super excited to (hopefully) see the Starfox/Metroid Crossover. And an Earthbound compliation for the 3DS, cause we all know that that's happening, right?
As for Sony, I feel like they will announce the PS4, but I don't think it'll do too well. The PS3 is just starting to get a real devoted group of fans, and to see support for everything dropped for the PS4 just as it's starting to pick up popularity is never a good move. I really want to see more of All Stars Battle Royale, which, while I feel is a ripoff of Smash Bros., may end up being really good. I also want to see Sony do something more original because, let's be honest here, a lot of the stuff that they've done since having Blu Ray support in the PS3 has been copied from other companies. They need to get back on the originality train!
Microsoft needs to focus less on the Kinect and more on creating things other than Shooter games for the XBox. Not to say anything bad about MS or the XBox, but they are only appealing to fans of Racing and Shooting games, and they need to build out into other genres, sort of like Bethesda did by putting Oblivion and Skyrim on the Xbox (RPG's!!!!). In short, there needs to be more of that!