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There are some anime and manga series that define success with their glorious runs andDemon Slayeris easily one such phenomenon. Every new development about the anime is sure to cause an uproar in the fandom, and that’s exactly what has happened as the supposed release date ofDemon Slayer’s Infinity Castlemovie gets leaked online.

The movie is reportedly scheduled for a September release, which is undoubtedly exciting. However, there’s a jarring possibility that could tarnish the phenomenal track record the anime series has maintained so far. Besides the tear-jerking and heartbreaking events of the final battle, what is it that could leave a scarring effect on fans? Let’s find out.
Demon Slayer’s Infinity Castle movierelease date gets leaked
After the conclusion of the Hashira Training arc, the Infinity Castle movies were announced. It was revealed that the final arcs of the series would be adapted into a trilogy, which would be released in theatres across the world. The release window was announced to be 2025, without a specific date.
In a recent development, an unnamed movie by Crunchyroll, Sony, and Aniplex was listed for a September 12th, 2025 release. And it’s all but confirmed thatthis movie isDemon Slayer’s Infinity Castlemovie. According to the information available on X, the movie will be released on September 12th, 2025 in Japan.

🚨 EXCLUSIVE: DEMON SLAYER INFINITY CASTLE ARC MOVIE IS COMING TO JAPANESE THEATERS SEPTEMBER 12TH 2025!pic.twitter.com/OyIZYN40Vj
The international release dates for the United Kingdom and France are September 12th and September 17th respectively. This reveal leaves us with less than a year before the movie makes its way to fans. Given the qualityDemon Slayerhas maintained so far, the release date is a cause of concern for fans.

The release date reveal raises some red flags
Demon Slayer Season 4or the Hashira Training arc concluded at a great point,wrapping up Kagaya’s character arc while setting upthe final battle. From here on out, the Hashira are up against Muzan, who is the embodiment of all things evil. The Hashira will make their way to the hidden corners of the Infinity Castle to face the highest class of demons.
The stakes will be ramped up significantly with fights that leave us stunned by the emotional gravity. Ufotable’s work onDemon Slayerhas set an unattainable standard with top-notch quality, especially in the fight sequences. As the story reaches its most important point, maintaining the quality becomes even more important. Given how there’s less than a year left, one can’t help but be concerned about the quality.

The More We Grow, the More We Realize the Purest Character in Demon Slayer Was Never Tanjiro but a Royally Ignored Hashira
Ever since the trilogy was first announced, fans have been concerned about the pacing. There are more than fifty chapters left and the sudden release date announcement raises red flags regarding the final installments of the anime. Nine months seem insufficient for a spectacle likeDemon Slayer.
However, it needs to be mentioned that the production probably started even before the trilogy was first announced. Ufotable’s approach withDemon Slayerhas been uncompromising so far as they delivered stunning visuals with every episode. Hopefully, they’ll continue down the same path and do justice to every frame of the final showdown.

Demon Slayeranime is available to stream on Crunchyroll.
Laveena Joshi
Anime Writer
Articles Published :925
Laveena is an anime content writer at FandomWire. Having written more than 800 articles, she’s an expert in mainstream shonen series, ranging from the bizarre world of JoJo’s to the expansive worldbuilding of One Piece.With her formal education in Journalism and Mass Communication, she explores entertainment journalism through the lens of anime and manga, from mainstream and classic titles to niche and obscure ones.