In late March 2015, Square Enix will release the new Dungeon RPG game, Holy Dungeon, on iOS and Android platforms in Japan. The pre-registration has already started.
Square Enix have several Final Fantasy mobile titles available, and also in the works, but they also have some original titles, such as the recently announced Holy Dungeon.
Who cares? Its a mobile game, give us something on Vita/3DS or a home console then we will be interested.