VG247 conducted a phone interview with Dan Connors of Telltale.
In that interview, it was mentioned that Telltale will be announcing new titles within the next few months. According to Dan Connors, "There’ll be some combination of things. I think we’ll be sticking with some of the franchises we’ve worked with, and we’ll be announcing some new franchises, probably in some new genres as well, not just comedy.”
Sam & Max Season Three will almost certainly be among the old franchises, since Telltale had already announced that the new season of Sam & Max will debut this year.
It's interesting to note that Telltale is planning on working on a dramatic license. They have delved in more series licences before with their games for Ubisoft based on the CSI series, but never in their main episodic downloadable games.