Assuming there is a league this year these seem like necessary upgrades, I would still like more then you said done with potential factoring in production (stats) to a variable production for players.
I still have no idea why players who are injured and end up playing don't have statistical reductions.
Adding onto this I would love to see a weekly fluctuation in a players stats based on their play, if they are playing well (and are young and inexperienced) their overall increases for that week but has a potential to decrease if they have a bad week. At the end of the year their total performance is evaluated, in addition with off-season improvement and they are given a new set of stats for the next season.
This "rolling" development seems realistic and has potential to be a huge benefit to the Madden franchise.