he won't be fine, unless _fan means something different than back to normal by fine. he's has not been among the best three relievers on the team, and unless you think he has a physical condition that is due to clear up in the near future, there's no real reason to think he'll revert to being outstanding.
he's not likely to give up tons of baserunners and record 0 outs every time out, but he's also not likely to be worth what he's getting paid. if they can move him for value, they need to jump at that chance.