Hi, Tim Schafer and Double Fine Productions are crowdfunding a new adventure game through Kickstarter. http://www.kickstarter.com/projects/...fine-adventure
(Official post on Double Fine's site: http://www.doublefine.com/news/comme...nture_is_here/ )

What can we do to get that game on Linux as soon as possible?

(There's also talk about Psychonauts 2 being done, since Notch of Minecraft fame said he'd pay a couple million towards it, but that's much less concrete than the one above.)

At it's current pace, it will easily reach it's goal.