When does Batman Ninja return?

Batman Ninja is a 2018 American-Japanese animated superhero film. It is directed by Junpei Mizusaki, produced by Warner Bros., and animated by Kamikaze Douga and YamatoWorks. The film was released in the United States in digital format on April 24, 2018. A sequel, Batman Ninja vs. Yakuza League, has been announced.