"Kimetsu no Yaiba" is set to return next year.

  A message shared by the Twitter user with the handle "@Spytrue" has revealed a leak related to Koyoharu Gotouge's manga, Kimetsu no Yaiba, suggesting that the next season of its anime adaptation will arrive next year. 

This fourth installment of the series would be titled "Kimetsu no Yaiba: Hashira Training Arc." However, it's important to note that this information has not yet been officially confirmed and comes from an unverified source.

Regarding the duration of this particular story arc, there are divided opinions, as some believe it might be too short to cover an entire season. Nevertheless, it's relevant to remember that the second season of the anime, which began in October 2021 with the title "Kimetsu no Yaiba: Mugen Ressha-hen," changed its title to "Kimetsu no Yaiba: Yuukaku-hen" in December 2021 and covered the adaptation of two distinct story arcs. In this context, it wouldn't be unusual for the fourth season to follow a similar structure.