He sits 90-91, so there's not much room for error. He'll have to come back after not pitching for 17 months having not lost anything on his fastball for LA to give him a spot out of ST. I don't think we'll see him in April.
Is Pineda the last guy to come back from labrum surgery? It took him over two years and he lost 2 mph on his fastball, and that was in his early-mid 20s.
Edit: I guess Garcia is another.
I'm not saying he'll never come back, just that the odds are that he shows up throwing mid 80s and spends a rough year working his way back into pre-surgery form. Even if he does come all the way back, it's probably going to be a painful 2016. Maybe not, but most likely.