Board Thread:Series Discussion/@comment-4738647-20150328194813/@comment-4311395-20150330002102

They might also make a series of OVA's about battling the remaining orbital knights, but without the main cast. Something like what they did with Code Geass: Akito The Exiled.

That way, you can add more to the series without ruining the main story. Of course, some fans might not be pleased with them using a different cast.