Summary
Kingdom Hearts 4marks the classic Square Enix and Disney crossover series' transition into its second major story arc. Dubbed the Lost Master Arc, this chapter in protagonist Sora’s journey brings him into the strange unreality known as Quadratum. Further details will have to wait untilKingdom Hearts 4is later in development, but what fans know for now is thatKingdom Hearts Union χ’s deceased Strelitzia will join him, and their subsequent adventures will have something to do with the mysterious Yozora.
Anything more is currently in the realm of educated guesses, andKingdom Heartshas no small number of plot hooks to pull on. Various questions like the location of the Master of Masters, what roles the Foretellers will now play, who the Nameless Star and the unknown test subject are, and so much more wait to beanswered inKingdom Hearts' newest saga. Speculation isn’t likely to subside anytime soon, even afterKingdom Hearts 4has come out. Just the ambiguous name of the Lost Master Arc alone, coming off of the more specific Dark Seeker Saga, implies many possible directionsKH4could take.

RELATED:Despite Ending the Dark Seeker Saga, Kingdom Hearts 4 Can’t Leave Riku By the Wayside
Kingdom Hearts Has Plenty of Lost Keyblade Masters
First, there’s the identity of the titular Lost Master. Chances are good that this title has multiple meanings, and the most obvious one describes the Master of Masters. Apart from his sudden appearance before a young Xehanort during which he claims to be one of the ‘Lost Masters’, the Master of Masters has been missing since assigning tasks to the Foretellers back inKingdom Hearts Union χ. Thesecret ending ofKingdom Hearts 3and the reveal trailer forKH4both imply that he’s taken up residence in Quadratum and that the plot will be concerned with his unfolding plan to destroy the 13 willful Darknesses.
Along with the Master of Masters comes the Foretellers and Luxu, most of which appeared in the extended ending toKH3. Some of them will probably go incognito, removing their masks for the first time and taking up different names to surprise players. The common assumption is that they will be amore sympathetic replacement for Organization 13, but their goals and methods are still a mystery. Luxu also has a mysterious but important role to play in all this, and the whereabouts of the Foreteller Ava, herself a lost Keyblade master, are similarly unknown.

It’s Up To Kingdom Hearts' Heroes To Find Any Missing Masters
Putting aside the web of intrigue surrounding the Foretellers, another interpretation of the Lost Master Arc presents itself. By gaining the Power of Waking, Sora is technically a formal declaration away from being an official Keyblade Master. Gaining a whip transformation for his personal Kingdom Key only supports this, so it’s not a stretch to claim the arc’s title refers to him. The basis forKH4is even that Sora’s lost in Quadratum, and Sora’s friends are looking for ways to rescue him. If this interpretation holds true, Sora could be found by other characters like Riku, Donald, and Goofy at some point.
He’s not the only lost person, either. Something has happened to Yozora and the Nameless Star’s original bodies, and Yozora is presented as a sort of parallel to a Keyblade Master. Since certain deceased or missing people fromKingdom Hearts' reality can appear in Quadratum, all manner of lost people could be found there. Rather than searching for keyholes, Sora’s new goal could be looking for various people while repelling the darkness like always. The Lost Master Arc implies all of this and more, so fans had best be ready to look for the truth onceKingdom Hearts 4is ready for action.
Kingdom Hearts 4is now in development.
MORE:Donald and Goofy’s Search For Sora Might Give Kingdom Hearts 4 the Perfect Balance