A Famitsu leak has revealed a new title called "Final Fantasy Agito" will be coming to iOS and Android smartphones in Japan. Given that Agito was the previous name of Final Fantasy type-0, perhaps this will be a continuation or a spin-off of some kind.
The game will be free-to-play but will have micro-transactions and paid continues, along with asynchronous multiplayer.
It's being directed by Masayasu Nishida, who worked on the first three Star Ocean and Radiata Stories. The game's story will be told in an episodic structure, with new chapters released every two weeks, and the story will change depending on player input.