Haven't really followed FIFA 12 closely. Seen some of the improvements and look forwards to them. However, I dread the other changes EA will bring about that make various aspects of the game crap. eg. They keep screwing with the manager aspect. In FIFA 10 we had to manage the team swapping players for games etc., when we just wanted to play football. The auto-coach option that we hoped would do that for us did nothing, or swapped players stupidly. FIFA 11 made things far worse, but either having you as a player manager you had to micro manager, or having you as a player and having to manager their career. When we play local coop, we don't want to be tied to one particular player!
Every time EA improve something, they mess something else up. If they enabled team management for tactics and formation and stuff, without having to micromanage players, and didn't impose annoying limits on the transfer market and stuff, it'd be a better game without changing the underlying mechanics. Hopefully they improve both aspects.