Too soon.
Even if Brady went totally fvcking ballistic after hearing Kraft today, I still have my doubts if he really wants to try to reinvent himself at this stage of the game.
He could be successful in the right place, but his best attribute is his mastery of our offensive system. How is he ever going to get back to where he is now with another team? I mean instant Super Bowl contender. By the time he gets really fluent gravity is starting to take over.
I don't see it as a realistic possiblity.
He'll stick around here until he retires, even if butt-hurt because the upside is too small for his career.