The only thing I want put to rest is, who will we be playing as? There was a lot of rumours and leaks about it being a Metal Gear Solid 2 type deal, where we'd play as Chief for only a bit of the game and Locke would be the main character. Which I'm torn on, but I suppose Locke does look like an interesting character. Still want to play as Chief, though!
Just more gameplay footage would be nice, but I'm just waiting for release now. The MP Beta showed that the gameplay is solid, really well done, so I just hope the Campaign is up to snuff.