Anyone who anime and was keeping tabs on things in 2019 can tell you that Demon Slayer: Kimetsu no Yaiba was the runaway hit of the year. Its first anime season brought 26 whirlwind episodes and generated so much buzz that volumes of the manga started selling out before they even hit store shelves. At the end of that first season, it was announced that a sequel movie covering the manga’s 13 chapter “Infinite Train” or “Demon Train” arc was in production as a direct follow up to the TV anime. News regarding this adaptation has been pretty light since the original announcement, but earlier today Aniplex dropped not only a new trailer, but the release date for the film, and a new key visual.
— 鬼滅の刃公式 (@kimetsu_off) April 10, 2020
As stated above, the movie will cover the Demon Train arc from the manga which sees Tanjiro, Zenitsu and Inosuke board the Infinity train in search of Kyojuro Rengoku. The trailer opens with the revelation that 40 people have gone missing on the train and is followed by Enmu speaking of others falling into an infinite dream, signaling one of the primary plot points of the movie. All of the fan favorites appear even if briefly, and quick snippets of animation show off the style that made ufotable’s adaptation such a hit. It was already announced that all of the core team from the TV anime is returning for the film, which should put many fans at ease about the adaptation (although ufotable has proven rather competent at filmmaking with the fate/stay night: Heaven’s Feel films).
Along with the trailer, Aniplex revealed that the film will be released on October 10th, 2020. The film will be distributed with participation from Toho Pictures to theaters across Japan. No adaptation of the movie for the west has been formally announced yet, but considering that the Aniplex of America has already included it on the series’ official website I think it’s a safe bet that we’ll see some information regarding that in the near future.