Anime fans have discovered a mysterious untitled Crunchyroll/Sony Pictures film listed for release on 15 September 2027 on movie database websites like The-Numbers.com, sparking speculation that it could be the long-awaited Demon Slayer: Infinity Castle 2. The sequel to the highest-grossing anime film of all time still lacks an official release date confirmation, making this potential leak significant for fans eagerly awaiting 2027's major anime releases.

However, insufficient evidence exists to definitively identify which film the September listing represents. The absence of Aniplex (Sony's anime subsidiary) from the production credits and discrepancies regarding distribution regions suggest it might not be Demon Slayer after all, with One Piece Film: God Valley presenting an alternative possibility. Industry observers caution that fans should await official announcements rather than rely on database listings that may contain incomplete or preliminary information.