My guess is that Risen will be the next title to slip into 2010.
Not gonna happen. They have already set and committed to a date which is October 2nd worldwide. The game has been in feature freeze and beta testing for months now so it is extremely unlikely that any major unexpected issues are all of a sudden going to pop up out of nowhere. They are balancing and polishing the game at this time according to the forums so they are really just about "done". German magazines have already been given access to playable beta code. The ad campaign and PR in general is in full swing (in Germany). Short of an act of God (office fire, earthquake, nuclear accident, plane crashing into their office building) there is nothing going to stand in the way of that October 2nd release.