According to a tipoff on the Telltale Games forum, they are due to appear on Monday 21 November at the Adventure Europe's Developer Conference to partake in a chat session via messageboard.
The schedule has them slotted in Monday 21st November 21:00 until 23:00 GMT alongside Herculean Effort, Himalaya Studios/AGDI, and Totem Games.
The big question is whether Bad-Brain's Wolfgang Kierdorf will be putting in an appearance to dazzle us all with some more (made-up) on the spot news. So far it looks like we're out of luck on that front.
Update: The chat's now over, but you can read all the questions and answers here.