The official English Twitter account for Demon Slayer released the trailer for Demon Slayer: Kimetsu no Yaiba Swordsmith Village Arc, the sequel to Demon Slayer: Kimetsu no Yaiba Entertainment District Arc. The release date has yet to be announced.

Demon Slayer: Kimetsu no Yaiba Swordsmith Village Arc was announced following the conclusion of the Entertainment District Arc, which began last December, in February. Director Haruo Sotozaki and character designer/chief animation director Akira Matsushima are returning for the new series.

The first Demon Slayer: Kimetsu no Yaiba season premiered in 2019. It was followed by Demon Slayer – Kimetsu No Yaiba – The Movie: Mugen Train in 2020, and later by the TV broadcast version of Mugen Train which premiered in October 2021. The anime are produced by Ufotable. 

Crunchyroll describes the first season as:

It is the Taisho Period in Japan. Tanjiro, a kindhearted boy who sells charcoal for a living, finds his family slaughtered by a demon. To make matters worse, his younger sister Nezuko, the sole survivor, has been transformed into a demon herself. Though devastated by this grim reality, Tanjiro resolves to become a “demon slayer” so that he can turn his sister back into a human, and kill the demon that massacred his family.

Demon Slayer: Kimetsu no Yaiba is based on the manga by Koyoharu Gotouge, which was first serialized in 2016 in Shueisha’s Weekly Shonen Jump magazine and ended in 2020 with a total of 23 tankoubon volumes. 

Source: Demon Slayer: Kimtesu no Yaiba English Twitter