Thanks to Danny for the following.
Hey dark, I have a friend who has a drama teacher who is best friends with the actor that plays Keamy, Kevin Durand. I asked her to ask the teacher if he could tell her anything about whether Kevin would be back for a flash-back or something else on the show and he replied that he can't say much, but that the show has told him that they will probably want him as a guest roll again for next year. That could mean a lot of different things, but it's still pretty awesome.
Source: Danny via DarkUFO