The addition of Gilbert to Double Fine is a rather auspicious reunion: Gilbert and Schafer worked together at LucasArts, collaborating on the design of The Secret of Monkey Island and its sequel. Gilbert is also responsible for the creation of the SCUMM engine that powered many LucasArts adventure games.
Schafer told Kotaku that Double Fine plans to continue working on multiple small games like Costume Quest. Gilbert is designing one of those games. Though he wouldn't go into specifics about it, he said, "It's an idea that I've been batting around for many, many years," adding that it's "very different than DeathSpank, and "fans of those old adventure games will like it." Later, Gilbert clarified, "That's not saying I'm making an adventure game." In case you thought you had it all figured out.