http://mmajunkie.com/2015/01/manage...-for-now-dont-include-a-return-to-the-octagon St-Pierre will be living the dream this year. He gets to film the Kickboxer remake with his idol JCVD. He was briefly featured last year in Captain America: The Winter Soldier. With the current state of the UFC I don't see what impetus he'd have for returning.
