A scan of the latest issue of Hobby Japan magazine, released on April 25, announced that Queen’s Blade Grimoire will be adapted into an OVA. Comprised of two disc volumes, it will be bundled with the release of the next visual combat book of the Queen’s Blade series in Fall 2015. The project is made to commemorate the 10th anniversary of Queen’s Blade. The staff members from the first season, Queen’s Blade: Rurou no Senshi, were also announced to return.
Queen’s Blade is a series of visual combat books first published in 2005 by Hobby Japan. Queen’s Blade Rebellion succeeded the original title and then was followed by Queen’s Blade Grimoire. The series received three TV anime adaptations, four manga adaptations, three light novels, and a video game adaptation.
Source: Scan of Hobby Japan Magazine