Also, who cares *what* IPs the park has as long as it's quality? Look at Shanghai Disneyland. It's biggest things are a POTC land and a TRON e-ticket, both of which are based off of dead franchises. Or Tokyo DisneySea that opened with little to no IPs at all. I think we miss the forest for the trees around here more often than not. No, How To Train Your Dragon isn't Toy Story, but I will be *very* surprised if the HTTYD land doesn't beat the pants off of any Toy Story attraction across the world, and people will respond to that. I wouldn't be surprised if the Monsters Land ends up being the surprise hit of the park, much like Marvel was the surprise hit of IoA.
This is the golden rule. Plenty of great rides have came out of crappy IPs (Splash Mountain) and some crappy rides have came out of great IPs (Smuggler's Run)
Yes, the IP helps (especially when it comes to merchandise) but it can only get you so far.
I think Monsters is going to the sleeper hit as well. It's unexpected and will probably have the more intense rides. If it's being done by a smaller group with less interference for the story, it could also far surpass their recent attempts at rebooting the movies.