Since he left LucasArts in the 90s, he's been mostly heading Hothead Games as creative director, where he produced for example the excellent DeathSpank series.
He came back to Monkey Island at Telltales recently and has now left with Tim Schafer for Double Fine studios.
His first game with Double Fine is slowly being revealed. And it already really looks like a Ron Gilbert production.
Ron Gilbert released the first two pieces of concept arts on his blog.
Here are a couple of fine pieces of concept art from the game I'm making with the amazing folks at Double Fine. I'm so excited. This is an idea that has been in my head for a long long long time. It predates Maniac Mansion and Monkey Island. It's a game that needed to be made.Oh, my! How intriguing!
These are two of the playable characters. That's all I can say right now, but more will follow later.
