Hey there,
I looked around the forums to see if this was posted yet, and was unable to find anything. There's been a particular excerpt from New Type magazine featuring DTB floating around from I believe, the July edition. The rumor mill on other forums is that it mentions a sequel, but none of the readers (even the poster) seemingly knows a lick of Japanese, and neither do I.
Anyhow, the picture is from here:
http://img713.imageshack.us/f/1280438368011.jpg/
It was originally posted on here:
http://yunakiti.blog79.fc2.com/blog-entry-5714.html
I waited a few weeks to see if anyone proficient in Japanese was able to give us a heads-up on what was being discussed here. I'm not holding my hopes too high considering the director said he had no intentions of a season 3 a while back, but I was hoping to find someone here who could roughly translate what it's about.
Thanks for your time! ~