Today is not a good day to be hit with Kingdom Hearts 4 spoilers, as thanks to what appears to be a massive Steam leak, achievement lists for multiple games have appeared online. Amongst the games caught in the leak is Kingdom Hearts 4, and if the data is real, several of the game's worlds have been revealed early. So far, only the world of Pixar's Coco has been officially confirmed by Disney, but it looks like players might be visiting one of the biggest IP from the House of Mouse, for the first time ever. Consider yourselves warned, as there are potential spoilers below.https://www.youtube.com/watch?v=x3NrZKxdh6Q&pp=ygUZZ2FtZXNwb3Qga2luZ2RvbSBoZWFydHMgNA%3D%3DThe various achievements uploaded to the achievement-tracking site Exophase mention various Disney worlds, but Star Wars is easily the biggest of them all. The iconic franchise has grown massively since Disney acquired it in 2012, expanding with a new sequel trilogy, spin-offs, and animated series. Which era of Star Wars could Sora visit? That's going to be the real surprise if and when Disney announces it.This isn't the first time that Star Wars has been linked to Kingdom Hearts 4. Back in 2022, a trailer for the game featured a quick glimpse of what appeared to be an All Terrain Scout Transport--the big mechanized troop-carriers from the iconic Hoth battle in The Empire Strikes Back--and the world that footage was taken from was a dead ringer for the forest moon of Endor, the home of the Ewoks.Beyond Star Wars, the leaked achievements also listed the following worlds for Kingdom Hearts 4:Haunted MansionImagineer PlanetGalaxy Far, Far Away (Star Wars)Land of the Dead (Coco)Monochrome OriginsQuadratumSavanna Central (Zootopia)Scala ad CaelumToy Box (Toy Story)That's a pretty safe selection of worlds for Kingdom Hearts 4, if the leak turns out to be accurate. Toy Story and Zootopia have been big box-office draws for Disney, Coco allows for an imaginative tour of the afterlife, and original worlds like Scala ad Caelum fit the bill for a Square Enix destination that has a weird name attached to it. Sadly, the list doesn't include worlds from other Disney IP, like It's Always Sunny in Philadelphia, the Predator homeworld of Yautja Prime, or a hellhole infested with Xenomorphs. We're never going to see Frank get a Keyblade, are we?While it has been a long time since a new installment in the Kingdom Hearts series was released, it looks like you won't need to wait much longer for this new chapter. Franchise co-creator Tetsuya Nomura recently spoke about the game at Disney's D23 Expo, promising that Kingdom Hearts 4 will come out in 2027. And who knows? We might even get a Kingdom Hearts movie one day.