there is plenty to indicate that this year was flukish, namely that it is completely out of line with what he had done in the previous 5 years of his professional career. even if he just reverts to being a 2 WAR player, that does not qualify as terrible. so yes, it's considerably more likely that he'll at least be a decent baseball player than a guy who completely lost all of his ability to play the game well at age 23.