The final episode of the third season of the BanG Dream! anime revealed on Thursday that the franchise is getting three theatrical films in the next two years. BanG Dream! Episode of Roselia I: Yakusoku (Promise) and BanG Dream! Episode of Roselia II: Song I am. are slated to open in theaters in Japan in 2021.
(Source: Anime News Network)
BanG Dream! Movie: Episode of Roselia - I: Yakusoku Comments