Since the first OVA, there is already a second OVA planned to be released on the 17th March 2011, with more OVA's releasing over a spread timeline.
There is already a second OVA. This is since the first OVA. This second OVA is planned to be released on the 17th March 2011. This was with more OVA's. This more OVA's is releasing over a spread timeline.