Can we try to use a little bit of common sense? Has HHN Singapore had a Demon Slayer house? No? Then there's no way Orlando will. Sorry. If you were ever going to test out the IP, that would be the starting point.
Saying that a movie made $50m in the US and that it's a huge hit is ridiculous. Yes, it made $450m worldwide, I assume mostly in AP markets, but that's not going to get people to travel half way around the world or Orlando. Cocaine Bear has made more in the US in two weeks and to say that IP would drive people to spend thousands of dollars to travel halfway around the world is laughable. $50m dollars at the domestic boxoffice is a HUGE anime hit. $50m at the US boxoffice is also 80 for Brady.
I love niche stuff. I know what bands I love, but have no illusions that the fans at their sold out shows reflect that they should do the Super Bowl halftime show, or headline Coachella, or anything else like that. It's OK to be a super fan of a niche item, just don't pretend everybody else shares your interests or your passion. We had this whole conversation in, I believe, The Future of Lost Continent thread with people thinking the whole land needed to be based on Anime and it would be a hit. The analogy I used then was Target. Go to Target and go to their toy section. You'll find Bokugan and Pokemon toys there, but where's all the Anime stuff? It's hidden, along the back wall between electronics and the seasonal/garden section. Up front, by the checkouts, they have sports cards and "mystery packs" of Harry Potter, Ben 10, etc figures. Where are the anime things? Again, in the back of the store in one of the least traveled areas. If there was the demand, it would be in the toy section. If there was a huge demand, it would have an endcap display where people walking down the main aisle would see it.
The fact that Target has an Anime section is a big deal, it's a major victory....but it's also an afterthought and something that the local audience, for whatever reason, doesn't care about. By and large that's true and people speak with their wallets.
Besides that, I wonder how you could even do one in the US. The whole point of Anime is the style of it. How do you bring something like that a HHN house? You can't match that. Any Japanese animation to live action films does nothing but piss off the fanbase. Look at the Alita CGI that had to be redone. The Sonic that had to be redone. The sheer indifference, if not outright rage, at the Ghost in the Shell movie. I feel that even if HHN did have an Anime house, I'd mostly likely enjoy it more than any Anime fan. Why? Because I don't have unrealistic expectations in my head for how to bring action packed stylelized cartoons into a small contained space with human actors.