I got my copy yesterday from Amazon, and only had time to do the tutorials on the 'new' controls, and play an exhibition match (which ended in penalty kicks after extended time).
The first thing that struck me was how much better my team's defensive A.I. was! That was really my only complaint with last year's version, and I think they've pretty much nailed it here. Plus, they've added more control over individual defensive players.
I didn't realize this allowed for updated rosters via Wi-Fi; I'll have to check that out!