I'd start dangling him now and see what offers you get. You might be surprised and get an offer that blows your socks off. Otherwise, he should have at least one more good week against a suspect Pittsburgh D. But I'd try to move him before Perriman has a big game.
He started hot last year then cooled off midseason and turned it on again at the final stretch. I'd look to max his value now, hard to tell if he can keep it up or turn it on in the playoffs again. I'd look at the dez owner. Might be able to snag a good deal there.