Do you have a link for this?
Here's what we see on Universal's website:
"THE SIMPSONS RIDE TM Twentieth Century Fox Film Corporation. The Simpsons TM & © 2018 Twentieth Century Fox Film Corporation. All rights reserved. "
The videogame is also Copyrighted by Fox and I feel fairly confident the merch will be as well (I haven't been to Universal in awhile and Simpsons merch is not easy to find).
WB also owns more than just distribution and rights of first refusal to Potter.
"HARRY POTTER, characters, names and related indicia are trademarks of and © Warner Bros. Entertainment Inc. Harry Potter Publishing Rights © JKR."
"Gryffindor™, Hufflepuff™, Ravenclaw™, Slytherin™, HARRY POTTER characters, names and related indicia are © & ™ Warner Bros. Entertainment Inc. Harry Potter Publishing Rights © JKR."
The same will also be said in merch along with Wizarding World. JKR owns the publishing and theatrical rights to Potter. That's why WB can't make a HP TV show or a new saga without her approval, for example. However, she can't take Potter to Universal either.
https://www.jkrowling.com/tcs/
https://www.universalorlando.com/web/en/us/terms-of-service/copyright/index.html
https://www.warnerbros.com/wizardingworldsubmissionguidelines
https://www.universalorlando.com/we...niversal-studios-florida-park-map-english.pdf
https://www.gamestop.com/Catalog/PopBackofbox.aspx?Product_ID=65005