According to the official website, age's spin off novel & manga series "Muv-Luv Alternative Total Eclipse" was announced to get a TV anime adaptation. It will be aired in 2012.

Muv-Luv AL TE Anime official website
Video Announcement
Total Eclipse novel official website

Muv-Luv Alternative is age's adult PC game released in 2006. Its manga adaptation has been serialized in Monthly Comic Dengeki Daioh since 2007. Total Eclipse is a spin-off novel of Alternative.

Yoshida Hirohiko (Yoshimune Koki), the President of age, posted on his twitter that he wanted to animate the original "Muv-Luv" and "Muv-Luv Alternative", but it's relatively easier to find the sponsors of "Total Eclipse" and another spin-off "Euro Front".

Source: Yoshida (Yoshimune)'s twitter

News credit: Socom

Muv-Luv Alternative: Total Eclipse on MAL