We know that Telltale will be at San Diego this week and that they will have something important to announce and while we still do not know what they plan to announce, some reports claim that it could be a new Batman series.
This came after the Flim and Labelling Body of New Zealand posted a rating for a video game called Batman: The Enemy Within this week. The director of the game is listed as Kent Mudle from Telltale which suggests that this could be another Telltale game.
Of course, this is far from a confirmation and this might not even be the game that Telltale was going to announce at Comic-con but it does reveal that Telltale could be working on more Batman game for the future.
As for the game that they plan to announce this week, we will have to wait for the San Diego Comic Con to find out more.