I think building any dedicated single IP land is a dangerous move long term. It's possible (maybe unlikely, but still possible) that in 25 years, nobody cares about Toy Story and that whole area is a waste of space -- none of the rides there are remotely special on their own; they rely on the Toy Story IP to draw people in.
Even Galaxy's Edge potentially has that problem (although highly unlikely). I don't think anyone would care about Smuggler's Run if not for the fact that you're piloting the Millennium Falcon. Rise fares better by being an incredibly impressive attraction, but if there's eventually a point where no one watches or cares about Star Wars, even that ride would probably at least a bit of its luster because it's heavily reliant on the IP from a story perspective.
Pandora, as you mentioned, is a bit different, because it doesn't really rely on any knowledge of the IP for the land or either of rides. Which is why execution matters the most -- as long the execution of the rides/area are excellent, the IP doesn't really matter in the end. If the ride is mediocre and relies on the IP to prop it up, well, you're in a lot of trouble if people no longer care about the IP.