If we ever going to trade him, should be between now and this upcoming off season.
He's still elite, but no longer possess the fire of the 104 mph fastball.
His value is only going to go down from here.
Choices are to either trade him, or watch his body continue to deteriorate.
Relievers burn bright, but burn out fast.
Would be sad to see him go, but if the topic of this article is accurate, I'd be ok moving on if they, in fact, are willing to overpay for him.