Teaser site: http://www.terra-battle.com/en/
More info at Japan Expo. It's an RPG.
Some news from the Famitsu interview :
-Will release in September.
-Freemium. The game is balanced so that the scenario is beatable without having to spend money.
-Uematsu is composing 20 tracks.
-Sakaguchi is planning some sort of collaboration with other game creators.
-Would like to make a console version in the future if given the opportunity.
Terra Battle staff:
Producer/Concept: Hironobu Sakaguchi
Director/Programming: Koji Ono
Character Design: Kimihiko Fujisaka
Game Design: Yuki Nishimura
Graphic Design: Kenei Hayama
Music: Nobuo Uematsu