If this is true I’m going to be very disappointed. I thought the whole series was decent because it was going to be a set-up for season three. If this is the definitive ending to Darker than Black I guess … I’ll just say I’m quite disappointed.
Further updates will come.
EDIT1: Kaoru Chujo of Animesuki (who’s obviously more knowledgeable in Japanese than I am) confirms that Tensai believes it is the end of Darker than Black. How it answers most of the questions is still a big question for me, but he does say that the OVA will tend to add more to our understanding.
At least, I hope so.