We at NerdLeaks have been watching the Kingdom Hearts community dissect a new leak, and according to Kotaku, a cinematic clip believed to be the opening scene of the now-canceled mobile game Kingdom Hearts: Missing-Link began circulating online. If true, the footage may contain story elements that Square Enix intended to fold into Kingdom Hearts IV.
What Was Reported

Kotaku reports the leaked cinematic appears to show a squad of astronaut- or deep-sea-diver-style Keyblade wielders fighting a massive Heartless in a dark, isolated distortion. Fans are interpreting the outfits as a sci-fi take on Keyblade Armor rather than the more familiar fantasy knight style.
- Missing-Link was described as a now-canceled mobile game that Square Enix had positioned as an important part of the Kingdom Hearts saga.
- The cinematic reportedly connects to the Astral Plane and the “Lanes Between,” with fans suggesting the suited figures were part of an early expedition from Scala ad Caelum.
- Some recognizable faces are allegedly visible in the clip: the character Brain from Kingdom Hearts Union χ and a clearer look at the enigmatic character Sigurd, who has been tied to visuals in Kingdom Hearts IV trailers.
- Kotaku notes that Square Enix had planned for characters from Missing-Link to appear in Kingdom Hearts IV, so the cinematic’s beats could matter even if the game itself never releases.
The Source & Credibility
Kotaku is the outlet reporting the leak and the surrounding fan analysis. Take this with a pinch of salt: the circulating clip is described as “believed to be” the intro cinematic, and much of the interpretation comes from community sleuthing rather than official confirmation.
The report highlights that fans are poring over visual motifs — tethered divers versus Sora’s more accidental “Dive to the Heart” imagery, for example — and drawing possible links to Quadratum and other Kingdom Hearts IV promotional material. These are community theories, and Kotaku frames them as such: interesting, but not definitive.
Kotaku also relays uncertainty around how Square Enix would handle a scrapped game’s narrative if its contents were important to the mainline story. The story cites the idea that series director Tetsuya Nomura likely had a plan for integrating cross-project storytelling, but that remains speculative.
What It Could Mean

If the leaked cinematic is authentic, it could point to a few concrete story beats Square Enix was exploring:
- There may have been an early expedition into the Astral Plane that discovered Heartless living there and “cleared out the darkness” so Keyblade wielders could explore it later — an origin thread that could retroactively explain gameplay or setting elements in Kingdom Hearts IV.
- The diver/astronaut suits could represent a technological or sci-fi iteration of Keyblade Armor, suggesting the series might be leaning further into the photoreal/Quadratum aesthetic fans have seen in recent trailers.
- The presence of Brain and a revealed face for Sigurd would strengthen the connection between mobile-title storylines and the mainline game’s roster, meaning scrapped mobile plots might still impact upcoming narratives.
All of this is framed as possibility rather than fact. Fans quoted in the coverage are drawing parallels between the cinematic and scenes from earlier Kingdom Hearts entries, but those links are speculative — interesting for theorycrafting, but not official confirmation of narrative direction.
Why This Matters
The coverage in Kotaku underlines a growing reality for Kingdom Hearts fans: mobile entries and spin-offs have become instrumental in the series’ worldbuilding. Even if Missing-Link never ships, elements from it — notably characters like Sigurd — may still surface in Kingdom Hearts IV or be used to catch players up.
How Square Enix will handle a scrapped entry that was meant to tie into its flagship sequel is unclear, but Kotaku suggests it wouldn’t be surprising for the company to fold those story beats into future releases. If true, the leaked cinematic could be a valuable breadcrumb for what Nomura and his team intended to explore next — a tantalizing hint that deserves scrutiny, but one we should treat with caution until Square Enix or official sources confirm anything.





