Sega appears to be in some form of cahoots with Double Fine, and it seems likely that the company will publish Ron Gilbert's long-standing project. A teaser image from Sega matches the various images that Gilbert has been posting, but no formal announcement has been made by either Double Fine or Sega itself.
SegaBits reports that a tweet from Sega teased an image with a strip missing. The art style, and more importantly the irregular edges of the missing pieces, match up with a series of characters Gilbert has been posting on his blog. The most likely conclusion is that Sega is publishing Gilbert's as-yet unnamed project. We contacted Sega for comment, but they have not yet responded.
This is not to be confused with Double Fine's Kickstarter adventure game. Gilbert has been working on this particular project since he joined the studio in 2010. He has promised that fans of old adventure games will like his new project, though, so that probably means two adventure titles are coming from the developer.
"This is an idea that has been in my head for a long long long time," Gilbert said last November. "It predates Maniac Mansion and Monkey Island. It's a game that needed to be made." It looks like Sega agrees.