Locomotion was supposed to be targeted for Madden 10, but there was no time, so hopefully it's in Madden 11. I suggest you add your request to the WishList forum. Hopefully EA is still checking there. Not sure though. They've had little to do with the forum for the last couple of months now without providing a clear path to get ideas to them. IMHO the WishList forum is your best bet.
That would be only half true. Locomotion was brought up in the dev cycle and they came to the conclusion that it was a low priority. This was said when people were outraged that they hadnt touched the run animations. This leads to the devs playing around with one(maybe more) of the run animations to try make them look better.(They looked worse IMO after the change but again its just my opinion)