Awesome pull. Did you pull it locally at Legacy or Ultimate? As for Thomas I dont believe that he has too much upside but the fact that its a HABS rookie is good, if your looking to move it. Look at Louis Leblanc, his stuff went crazy for a while, cause hes a HAB.
If you're talking about holding out in the chance that he blows up in the league, I'd say your chances are slim to none. I'd go ahead and sell it now for the best value. I highly doubt that becomes any more valuable in the future.