According to AV Watch, the DVD and Blu-ray of Queen's Blade: Gyokuza wo Tsugu Mono
will be released from December 22nd. Each volume includes a short OVA "Yappari Dechauno Gainos Gakuen Oabare!".
According to Amazon Japan, the DVD and Blu-ray of Shin Koihime†Musou
will be released from January 6th, 2010. Judging from the duration of the discs, the volume 7 is an OVA. It will be released on July 7th, 2010.
Updated on December 28th
According to the official website, the OVA of Shin Koihime Musou was confirmed. It's a parallel story in Saint Francesca Gakuen same as the previous OVA.
Source: Shin Koihime official website