I share both of your enthusiasm for Next-Gen. (Honestly, even M25 on this gen looks very playable, and this is coming from a guy who hasnt enjoyed Madden since PS2)
I think this team, and the suits in charge of Tiburon have finally decided that they want to make a quality, SIM football game. However, Madden is going to need a complete re-write of presentation. My guess is that is going to be a very heavy focus for M15 Next-Gen. I think they are going to focus much less on graphics, and much heavier on real broadcast presentation this generation.
As a matter of fact, one of the top presentation developers (Michael Young) said they had Pat Kirwan from CBS down at Tiburon last week. I think starting next year we are going to see a huge focus on a authentic, CBS style broadcast approach.
Remember the Kolbe from The Show is now a lead designer on Madden Next-Gen, and The Show has incredible broadcast presentation.