If only it was easy as just typing that out to make it happen. Re-architecting the game and tossing it on a new platform isn't a small feat for the most part though and the game wasn't supported before so not sure removing the gimmick and releasing it even more vanilla would be something that'd be easy to sell to higher-ups. Probably can't even release the original on PS Now because of licensing.
As for NFL2k15, neither Take Two or 2k are licensees of NFL Players still/yet FWIW.