Wright is one of the fastest big men the Pats have, competing with guys like Neal and Koppen who get upfield so well. He is a member of the wedge, the KO coverage and Punt return teams because he has open field mobility.
That said, I don't see him holding up that well in pass coverage, I don't think he has that first step burst that Colvin, Vrabel, and TBC bring to the edge rush. I'd have no problem with him setting the edge in the run game, he'd be darned good at it.
He's worked hard to earn his 5th DL role and increased playing time, I don't see the Pats trying to have him lose weight and learn OLB. I wouldn't be surprised if he gets into an offseason routine similar to the one Ty Warren did this year to improve his burst off the snap. I'll settle for him being very productive behind Big Vince and his Bookends.