Look Pepper you mad old duffer, the lighting engine is alot better this year, the grass on the field looks real, the animations are better, player models vary much more, the sheer attention to detail actually makes the game look like it is in HD for once. I have been playing alot of 11 recently, and after playing this demo, it's head and shoulders above it in all of the above.
The demo is also 3 months old, which is strange that they have used it to try and promote the game, I will be getting 12 as I am in a Madden League on 4thString.com. 2K is a great game, and I loved that series, but honestly, for me, the demo has shown it does look true Next Gen, even though we're about to get the 6th Madden game.