My own personal guess... possible but less than 50% likely. He would have to keep up his pace at AA, get a mid-season promotion to Syracuse, pitch well there, AND then get added to the 40 man. There is a lot of room for things to go wrong in that timeline, but at the same time he is probably somewhere in the #8-10 range on the starters depth chart, so a heap of injuries to the pitching staff could open a door for him. A 2013 call up seems more likely.