The official website for Demon Slayer -Kimetsu no Yaiba- The Movie: Mugen Train released a new trailer. The sequel anime movie is now scheduled for 16 October in Japan after a delay due to COVID-19.
A new theme song titled “Homura” by LiSA also debuted in the trailer. Aniplex of America uploaded an English subtitled verison of the trailer. The United States release is now scheduled for 2021.
Aniplex of America describes the movie as:
Set forth on a new mission with “Demon Slayer -Kimetsu no Yaiba- The Movie: Mugen Train” as Tanjiro and company face one of the Twelve Kizuki aboard a mysterious train accompanied by the Flame Hashira, Kyojuro Rengoku.
Source: Aniplex of America