I've been lurking the last 20+ pages of this thread over the last week(also the SNW thread) and... i don't even know where to start.
Ok.
I've seen a couple of people saying the 4th gate will need a sci-fi area, and pointing at the possibility of Star Trek. But what if they did something with Doctor Who... i know it is a less recognizable brand for the GP, but it doesn't need to be the biggest thing, and at the same time is a brand with a lot of source material and merchandising possibilities. Universal also has some connection to Doctor Who already, the DW 90's movie was produced by Uni, and there is also the London Resort/London Paramount which after Paramount jumped out of the boat I've read rumors of Universal taking over(Universal Studios London), and that project had a agreement with BBC.
... also throw in something Sherlock Homes too, since Universal was the one to make the 40's Sherlock Holmes... maybe it would fit better in Studios, i don't know, i'm not even that big of a Sherlock fan.
About a Pokémon Land on Nintendo World, i don't know if it will go into the 4th gate or in US and i also don't care, but I've been thinking a lot on how it would look like, and I always had the thought about it being, as someone already said here, a blank slate, with an original place like Galaxy's Edge is, but yesterday i remembered that there is a Pokémon movie coming out, Detective Pikachu, which is being made by Legendary, so also partially by Universal, so i wouldn't be surprised if the area was themed after Detective Pikachu.
About the 4 worlds thing: Nintendo World is probably the most certain one. After that Wizarding World, which i'm not sure how they would theme it, but as what i was saying about Pokémon and Galaxy's Edge, they might talk with JK and bring something entirely new which we still haven't seen in the movie or might not even see... or i don't know build all the magic schools of the world. Dreamworks world also is fine, would fit, but they would more likely go with "Animation World" or something like that so they can have both Dreamworks and Ilumination. The last one is NOT FREAKING Holiday World please XD Transforming the Universal Classic Monsters into Halloween just seems wrong, even more when 99% of the world doesn't care about it, monsters are no Halloween it's the other way around, also the only way i could see a good christmas land fit in the park would maybe be with Grinch, and we sort off already have that in IoA. So i think it would be more likely to be something else the 4th world, maybe a Monsters world in a more broad way like Kaijus(I don't know how much rights Universal has to Legendary's IPs like Pacific Rim and Godzilla).
Also, i want to bring up two last things:
1st, I don't think Madagascar is still as relevant as it once was, but someone brought up the Singapore Madagascar ride, but there is also one other Madagascar ride/land/show, Beto Carrero on Brazil made a deal with Universal a couple of year ago, so it has an area themed around Madagascar 4's circus, it has a rapids ride which isn't exactly the best rapids ride and isn't as well themed as Singapore's dark ride, but at least looks more fun, the area theming is fine and the
show is probably the best part. They also got a car stunt show themed with the Fast franchise(and i think it's Hotwheels now), which from what i heard, is better then the one Hollywood Studios had.
2nd, I can be the only one who noticed the guy ripping Tomorrowlands plot(not sure if it was on purpose) LMAO.
500 years ago, some of the worlds greatest thinkers, philosophers, artists, and scientists from all over the world got together and decided that it was necessary to make a utopia.(...)