According to the cover page for the January issue of Bessatsu Shounen magazine, a TV anime of Isayama Hajime’s supernatural-action series, 「Shingeki no Kyojin」 (Attack on Titan), has been green-lit for production. The initial broadcast will begin Spring 2013.
The image of the cover page which included the announcement was originally found on the official website for Bessatsu Shounen. It has since been removed; suggesting the news may have been leaked early.
The Shingeki no Kyojin manga series currently has 9 volumes to date – with the first volume debuting on March 17th, 2010. It began serialization in Bessatsu Shounen magazine in 2009.
Several hundred years ago, humans were nearly exterminated by giants. Giants are typically several stories tall, seem to have no intelligence, devour human beings and, worst of all, seem to do it for the pleasure rather than as a food source. A small percentage of humanity survived by walling themselves in a city protected by extremely high walls, even taller than the biggest of giants.
Flash forward to the present and the city has not seen a giant in over 100 years. Teenage boy Elen and his foster sister Mikasa witness something horrific as the city walls are destroyed by a super giant that appears out of thin air. As the smaller giants flood the city, the two kids watch in horror as their mother is eaten alive. Elen vows that he will murder every single giant and take revenge for all of mankind.