As JP posted on the forums (but not here, for whatever reason), Telltale's appearance at this year's Comic-Con will be where they announce their remaining "mystery license" for which they'll develop a new episodic series:
On Saturday [the 26th], Comic-Con will hosts a Telltale Games panel where the creators will announce plans for a third episodic game series to join their Sam and Max and Strong Bad series.So keep an eye out for that.
http://www.telltalegames.com/community/blogs/id-354
Hmmmmm...
It is something they wish to do at some point, and is in their long-term plans though.
I'll race you (all) for the actual license news once the Comic-Con info hits the web, though.