User blog comment:Zathronas/Analysis by an author: Beacon Ozpin/@comment-24116665-20131210183047/@comment-24218038-20131210184811

It won't happen in volume 2.They still have so much to establish, my expectation of the darkness arrival is season 2 volume 2 at the earliest. Even then, that would make things iffy. We'll certainly know more about it before then. Monty said they were already planning things for season 5. So get ready for a long haul