In the latest issue of Megami magazine, it was announced that the "Toei Robot Girls" project will get a new anime. It will be called "Toei Robot Girls Z" and consist of nine 10-minute episodes to start airing on Toei Channel from January 2014.

The story revolves around a new team of "Toei robot girls" named "Team Z" that is made up of three girls based on Toei's Mazinger Z franchise: Mazinger Z, Great Mazinger, and UFO Robot Grendizer. Usually they perform in activities around Nerima ward in Tokyo to raise the awareness of the promising future energy source "Photon Power" (koushiryoku). However, there are times when "Mechanical Beast" team of girls emerge from the "Subterranean Empire" and attempt to steal the energy. Thus "Team Z" has to battle them to prevent this, though sometimes they just go and beat up the "bad girls" to relieve stress.

"Toei Robot Girls" project started life in 2009 with a weekly release of 4-koma manga (which lasted until February 2013). Merchandise and art books were also released over the years. In July 2011, it was adapted into a pilot anime video "Toei Robot Girls" that was based on the robots Baratak, Gakeen, and Gaking.

Official anime website: http://www.robot-girlsz.com (to start operation from July 30, 2013)

Key staff and seiyuu cast remain unchanged from the pilot video:

Staff
Studio: Toei Animation
Director: Ikehata Hiroshi
Series Composition: Hyoudo Kazuho
Character Design: Kawakami Tetsuya

Cast
Z-chan (Mazinger-Z): Honda Mariko
Gre-chan (Great Mazinger): Minase Inori
Grenda-chan (Grendizer): Aranami Kazusa
Baron Oshura: Hisakawa Aya
Garada K7: Morishita Yukiko
Doublas M2: Touyama Nao
Gai-chan (Gaiking): Takaoka Kaori
Gakki (Gakeen): Satoh Satomi
Baratan (Baratak): Tsuji Ayumi
Dandan (Danguard A): Kitaoka Chiharu
　
Source: Megami Scan 1, Scan 2, Scan 3 via Hachima

Toei Robot Girls Z on MAL