A movie of Strike Witches
was announced in the live program streamed on Niconico Douga. More information will be revealed in Nyan Type magazine vol.13.
Kadokawa will launch an official channel on Niconico Douga and plans to produce original anime available exclusively on Niconico.
Sources: Screenshot of the announcement
, Shimada Humikane's tweet
, Niconico Live
Updated on February 15th
According to Oricon news, Strike Witches movie will be premiered in 2012.
Update on August 10th
According to the poster of the movie, it will be premiered in Spring 2012.
Source: Picture of the poster