Update: Thanks to a guest for pointing out Ragnar has already quashed this rumour in his blog:

Just want to squash this one before it gets out of hand. The above is a bit of a misquote. In the interview, I said that I have the story (EDIT: in the podcast this refers to, I said “I have the plans ready for a sequel”), but there are no concrete plans to make one (yet), and we definitely haven’t started working on a sequel. As I’ve said in previous posts, I won’t rest until (one way or the other) the story’s complete, but whether or not there will be a Dreamfall 2 anytime soon depends on how well this one sells. If it’s a huge hit, it’s a no-brainer. If not - it could take a while.