Back in October the official website of the Aldnoah.Zero series released the first visual for the upcoming second season of the anime, which will air from January 2015. Today a new visual has begun advertising across Japan for the return of Aldnoah.Zero.

Aniplex USA also released a teaser video for the second cour of Aldnoah.Zero a while ago:

Aldnoah.Zero is a brand new original series created by Gen Urobuchi, the writer of the Fate/Zero light novels and anime, and Mahou Shoujo Madoka★Magica. The anime is directed by Ei Aoki who directed the Fate/Zero anime – teaming up with Urobuchi once again. The series is written by the “Olympus Knights”, a group of writers from Nitro+ (known for their science adventure visual novels) that is helmed by Urobuchi. Katsuhiko Takayama (Mirai Nikki) is the series composer, managing the flow and story of the series.

The character concepts are done by Masako Matsumoto (Naruto Shippuden) and the final character designs from Takako Shimura (Aoi Hana). The series features mechs designed by I-IV and Kenji Teraoka (Ghost in the Shell: Stand Alone Complex), and the music is composed by Hiroyuki Sawano (Attack on Titan). The series is produced by A-1 Pictures (Sword Art Online, Fairy Tail) and studio TROYCA (new studio opened by Aoki). The first series had a total of 12 episodes and was earlier confirmed to be a split cour.

Aldnoah.Zero synopsis from Haruhichan:

In 1972, the Apollo 17 mission found a hypergate to Mars on the surface of the moon. Upon landing, astronauts discovered a enchanted utility later referred to as ‘Aldnoah’, giving the astronauts a status of superiority. Soon, many humans have relocated to Mars, and have adapted to the name ‘Martians’. After Princess Asseylum, a royal Martian princess, descends onto Earth in an attempt to create a treaty between both planets, a war breaks out between Earth and Mars, and Martian soldiers begin to descend from the sky, riding steel giants, intent on exterminating humanity.

Aldnoah.Zero will return January during the Winter 2014/2015 anime season. Further information about the second cour of the anime will be revealed soon.

Source: Crunchyroll