Fringe has been renewed for a fourth season of 22 episodes. Nope, it's not April Fool's day, that's next Friday (so if you see a 'Fox Changes Mind, Canceles Fringe' post...).
Fox has expressed happiness with Fringe's Friday performance, but particularly with the full season pickup, friends and foes of Fringe alike are wondering if there isn't more to it.
It seems everyone has a theory, several of them are expressed in the poll below. Cast a vote below or write-in with your favorite.