Supposedly he probably won't even make the practice team. They say that the speed of the game is too much for him to handle with his inexperience, though he's learned well.
Word is that he also would not come back to wrestling if he doesn't make the Vikings. BUT, without football and without wrestling - what does he have left? All he knew in his life was wrestling before so I can't see him staying away from it for good, especially if he doesn't make the team. A competitor's spirit always needs something.
His pride won't allow him to come back anytime soon BUT I'm pretty sure that the terms of his release from his contract, which still had a few years on it, is that if he decides to come back to wrestling in that time, it must be with the WWE. Give it another year or two.