Here's the part of the article that has naturally spread like a rash since its publication:
Is it difficult to go against that pressure and create new content instead?
"It's not that we don't have a choice! I mean I get a lot of, on Twitter or whatever, daily questions about Psychonauts 2. And I would love to do Psychonauts 2, I've actually pitched that to publishers several times and no-one has taken the bait so far.
Source: Digital Spy