If the combat is more like 3D fighting games (even with motions replacing some buttons presses), then the Motion+ would be redundant. Although that is an "if".
As for online, I'm gonna have to shrug that off, as long as there is local multiplayer.
A flashy-first game is awesome when it comes out. A great-first game is awesome forever.
Plus, just for the hell of it: Kelly Brook at the 2008 BAFTAs