According to Hobby Japan magazine, a new OVA of Queen’s Blade titled “Vanquished Queens” was announced to be released in the spring of 2013. It’s a two-volume OVA series and the story is independent of the previous TV series.
Staff
Director: Itagaki Shin
Scenario: Kingetsu Ryunosuke
Character Design: Rinshin
Animation Director: Isono Satoshi (“Itsuka Tenma no Kuro Usagi”), Yamamura Shunryo (“Manyuu Hikenchou”)
Production Studio: Hoods Entertainment
Source: Scan of HJ magazine
Queen’s Blade: Vanquished Queens on MAL