As you probably know, Double Fine is crowdfunding the sequel for Psychonauts 2. But now they've updated the Fig page with a FAQ about the game's development.
One of the questions they answer is regarding a sequel to the heavy metal action adventure, Brütal Legend. This is what they had to say on the matter:
"We've always said that we wanted to make sequels to both Psychonauts and Brutal Legend. We can't make any promises but if Psychonauts is a success for us, then perhaps Brutal Legend 2 will be more possible?"
Thanks, Dual Shockers.