Not a great deal of information has yet been released for 13 Sentinels: Aegis Rim except we know that Atlus is bringing it West. This is all we got in the official announcement:
Life as you know it is ending because 13 Sentinels: Aegis Rim will be localized and released in the West by ATLUS. The upcoming title is being developed by Vanillaware and directed by George Kamitani (Dragon's Crown and Odin Sphere). A departure from the studio's traditional fantasy style, the game takes place in a modern setting punctuated with giant mechs. Although the world may be bleak, Vanillaware's signature artistic shine and gorgeous aesthetics will bring the characters and story of 13 Sentinels to life.A visit to the game's official website revealed nothing further, but we do have some pretty screens.
We've also been provided a short video that gives a tiny bit more information but not enough to really know what's going on.
13 Sentinels: Aegis Rim will be coming to both the PS4 and the Vita. As we learn more, we'll let you know.