Personally, I think MUT needs to devolve a little bit. I know this is by far the easiest way for EA to make money so they won't change it, but all these physical chemistries that give you 3, 4, 5 ,6+ speed are kind of ridiculous and ruin the creativity of team building. Everyone has to play a ton or spend money (by design) to keep their teams up to speed every month, or just be willing to be at a disadvantage when it comes to speed and acceleration. It leads to less skilled play, less creative team building, and feeds EA's greed in an unhealthy way.
I think physical chemistries should go out the window, no more speed, accel, agility, cod, strength ratings adjustments. Just more accurately built players, and a game that is balanced enough to value multiple different styles of play.