I doubt Dustin would ever do any kind of porn again - I mean, you never know. I recently rewatched the premier of Battle of the Exes II, and he was the first to go home - spoiler alert. Anyway, he seemed to blame the fact that he was never able to make friends or bond with the guys over his past in gay porn. I mean not seemed - he explicitly said it. So based on that, I doubt he would ever return to it.
And correct me if I'm wrong, but didn't he initially say he only jerked off on cam. Then as more videos became uncovered it became apparent he lied about how "involved" he was?
Anyway, rewatching a lot of the earlier season there was a lot of subtle homophobia - another discussion for another board - I don't think that was ever the issue with Dustin.
Sorry for derailing things -- here's Dustin twerking in the shower to make my post somewhat more on topic.