A listing on Neowing has revealed that the 7th Durarara!! DVD release will not only contain the 13th episode, it'll also feature a bonus episode. It seems Brain's Base is doing much the same thing that was done with Baccano!, which is to release an extra episode on the last few DVDs. Whether the bonus episode will be part of the main storyline, or perhaps contain a side story has yet to be seen.

Also included in the 7th release will be a drama CD, featuring a side story from the 7th novel in the series. The whole package will be out on August 25th, later this year, for 5040 yen.

The bonus OVAs from Baccano! were some of the best, showing off Graham Specter and delving into what happened after the main series ended. Hopefully we'll be getting similar content here.