According to OCN Anime News, first episode of Sunrise’s new anime project, Code Geass Gaiden: Boukoku no Akito will be shown in 10 theaters throughout Japan this early summer.

Anime’s main charaters, Akita and Reira Marukaru will be played by Miyu Irino and Maaya Sakamoto, respectively.

Synopsis
The story takes place in Europe in the year a.t.b. 2017. A Knightmare unit made of boys and girls from Zone Eleven are thrown into a military operation with a 5% chance of survival. They must rescue an allied unit left behind on the European warfront. [MyAnimeList]

Code Geass Gaiden: Boukoku no Akito Promotional Video

[Source]