https://wccftech.com/final-fantasy-xv-directors-next-project/

Hajime Tabata has been working extremely hard on Final Fantasy XV, and his job wasn’t done even when the game released last year, as he and his team are trying to improve the game with new story sequences and features introduced through updates. It seems like the game’s director won’t be getting rest anytime soon, as his next project has already started, despite previous claims.

Speaking with Game Revolution, Hajime Tabata confirmed that his next project has already started. He obviously couldn’t talk about it, but it sounds like it’s not strictly related to Final Fantasy XV.