An interview on The PA Report features Tim Schafer discussing possible ideas for Psychonauts 2 (thanks nin). There's also a funny story on VentureBeat on "How Tim Schafer Is Spending Your Money," discussing uses for their Kickstarter windfall.
Incidentally, he won't actually receive any kickstarter money until more than a month after it ends. So that slideshow on venturebeat is just a joke, in case anyone misses that.