According to Newtype magazine, an original TV anime "Senhime Zesshou Symphogear" was announced to be aired from January 2012.
Symphogear anime official website
Director: Ito Tatsufumi ("Shugo Chara! Party!
Original work: Agematsu Noriyasu
, Kaneko Akifumi (game "Wild Arms
Series Composition: Kaneko Akifumi
Character Design and General Animation Director: Koike Satoshi ("Keroro Gunsou
Creatures Design: okama
Art Director: Roman Toma
Production Studio: Encourage Films
Kazenari Tsubasa: Mizuki Nana
Amo Kanade: Takayama Minami
Tachibana Hibiki: Yuki Aoi
Kohinata Miku: Iguchi Yuka
Humans have been menaced by mysterious monsters called "Designated Aberrant Disaster: Noise". Tsubasa and Kanade are a popular vocal unit "Twei Wing". They wear the new weapon "Symphogear" and fight against Noise to save the earth.
Source: Scan of Newtype
Senhime Zesshou Symphogear