Kingdom Hearts co-creator Tetsuya Nomura has recently hinted at updates for Kingdom Hearts 4. Announced in 2022, the next installment in the expansive Kingdom Hearts saga features protagonist Sora awakening in Quadratum, a mysterious city inspired by Shibuya. Kingdom Hearts 4 initiates the "Lost Master Arc," which is described as the “beginning of the end” for the series.
Since the initial trailer, Square Enix has remained relatively tight-lipped about Kingdom Hearts 4, leaving fans to dissect the trailer for story hints and potential new Disney worlds. Some enthusiasts have noticed clues suggesting that Star Wars or Marvel worlds might be incorporated, expanding the series' Disney crossover beyond traditional animated films.
On January 9, 2025, the Kingdom Hearts community celebrated the 15th anniversary of the PSP prequel, Birth By Sleep. Tetsuya Nomura marked the occasion with a social media post, elaborating on how the game utilizes the series' theme of crossroads, pivotal moments of divergence. He hinted that this concept could be significant in the upcoming "Lost Master Arc" of Kingdom Hearts 4 but deferred further discussion for a later time.
Nomura elaborated on the Lost Masters' gathering at a crossroads in one of the final scenes of Kingdom Hearts 3, revealing Xigbar as Luxu, an ancient Keyblade wielder who has been observing the series' events covertly. Nomura hinted that the Lost Masters, meeting with Luxu, must lose something to gain something, alluding to the crossroads myth from American folklore, a recurring motif in the series.
Nomura's recent comments suggest that Kingdom Hearts 4 might address what the Lost Masters lost and gained during their crucial encounter with Luxu. Although much about the game remains undisclosed, Nomura's mention of this topic could indicate that more details are forthcoming, possibly in another thrilling trailer for Kingdom Hearts 4.