This set contains the first twelve episodes of Durarara!!x2. Siren Visual confirmed in response to a fan question that the OVA episode is exclusive to the Aniplex USA edition. It is also available in Japan. The set features dual language options and is coded for playback in Region B only. It has a suggested retail price of $44.95 AUD (Australian Dollars).
There is no word of a release of the next season of episodes yet, but Siren Visual said to “stay tuned” for news about it.