Peyton's neck has healed and that's a good thing, but he's still not physically able to play. Peyton has a lot of nerve regeneration that has to happen in his throwing arm. Until that happens he won't be able to play at the level we're used to seeing. There isn't a doctor out there that can tell you when this will happen. It has to happen on it's own...if it happens at all. This nerve problem has cause his muscles to atrophy. That's a very bad thing for a strong arm passer like Peyton. That's why people question weather he will ever be able to play again or not.