After the end of Demon Slayer season, 1 Producer announced the announced a sequel film instead of Demon Slayer Season 2. Demon Slayer movie will be called Demon Slayer: Demon Train Arc or Kimetsu no Yaiba: Mugen Ressha-Hen. It was announced immediately after the anime series ended airing in Japan. Besides, it is expected to follow the ‘Infinite Train’ story arc from the seventh volume of the original manga series.
TVアニメ「鬼滅の刃」竈門炭治郎 立志編 完
— ufotable (@ufotable) September 28, 2019