According to the cover note of the novel volume 4, Hobby Japan's media franchise project "Hyakka Ryoran Samurai Girls" was announced to get a TV anime adaptation. More details will be revealed at Tokyo International Anime Fair 2010 to be held next month.

Hyakka Ryoran official website

Hyakka Ryoran project was launched by a publisher Hobby Japan in 2009 and an original novel series has been published by HJ Bunko label.

Synopsis:
A school battle & love comedy. The story takes place in Japan in the early 21st century, in an alternate reality. The Tokugawa Shogunate has remained in power and the student council is tyrannizing school. Yagyuu Muneakira is a high school student who rebels against the council with the help of girls who've had the names of famous samurai heroes passed on to them.

Source: Scan of the cover note