The first volume of the Queen’s Blade Unlimited OVA series landed last year with a July 13th, 2018 debut where the DVD is priced at 6,000 yen and the Blu-ray at 7,000 yen.
Takayuki Noguchi is serving as the character designer and chief animation director with Fortes handling the animation production.
There are a few anime series out there for this property already with the first two TV series released by Media Blasters while the third and the OVA run were released by Sentai Filmworks.