So I saw on a tweet that Tron was announced only a month before KH2 was released. So it's not impossible for another Disney world to be announced. It would probably just be a less popular or not a mainstream one.
With all the trailer hype, I'm still immensely bothered by those glowing walls. It feels like nobody is talking about this anymore as if it's suddenly fine. It's not. It's super distracting and honestly, I don't need the game telling me that. It can establish that once in a tutorial stage but that's it. Tell me I can run up almost anything flat and I will try that if nothing else works. There's nothing wrong with letting people figure out things by themselves, especially if a game is rated 10+. It's not like someone would suddenly miss a wall to progress, considering Sora is running up on his own without pressing any buttons.
This isn't like other games that tell you which objects can be taken with a subtle, more outstanding color or other hints, especially when they're easy to miss otherwise.(Although that can often be adjusted.) But if the 3 walls caging me in all glow then this would be a major deal-breaker. They're doing a great job with the environments and burying that beneath a layer of an unnatural wavy glow destroys that. That is especially noticeable in Toy Story and also BH6. It simply doesn't fit into the surroundings.
I sincerely hope that this can be turned off in the settings. I'm not 5 anymore, I know how to use environmental techniques if the game tells me once. Had no problems with Flow Motion either. I don't need to be taken by the hand to such a degree that I won't figure out how to move on if all the walls don't scream at me to push against them. Imagine if games like Mario 64 did that. The entire game would be shining.