To add to the list,
Others may have mentioned this but the Replayability for me is
Adaptive A.I. Tiburon(former team) tried this before w/ My Skill feature but failed.
IRL, teams will watch video on what the oppenents are doing and try to catch tendencies and exploit that in the next matchup. Also adapting while in games too. This should be more based off the players Awarness imo.
So why not have the CPU a.i. catch/compute my tendencies from the previous games and adjust accordingly for the next game. Not just what MY Skill did, b/c it didnt take into account my opponents ratings at all. I could rush for 300yds against the worst run D and it would make my next opponent turn into All-Madden Run D and stuff behind the los all game.
So a more advanced My Skill/Adaptive A.I. would really be something expected by 2012 imo!
So, for ex.
1. If I run on 1st down 3 out of 4 times the CPU should catch this.
2. If I PA on 2nd down 3 out of 4 times the CPU should catch this and adjust to stop it.
3. If I run Punt Blk too much, the CPU should try a few more fakes(in the right situations to swing momentum)
4. If I run Man Blitz schemes too much, the cpu should adjust and start making me pay for being too aggressive.
Team/Player ratings should still matter too b/c players like Ray Lewis(high awarness) doesnt need to see you do the same thing 3 times to figure out what your doing. He sees it once and your done the 2nd time around!
This would keep me and others from playing w/ Slider for months and months. It would allow me to get past YR 1 of my franchise.
Adaptive A.I. in all aspects of the game Offense, Defense, and Special Teams. Along w/ what other areas guys have mentioned is really something that should be expected by 2012.