I think some things should be better defined, within the context of how Fantastic Worlds may look. And we can reference the KidZone Mushroom Kingdom Plans.
Land - A featured, IP based component with at least three attractions, a restaurant and a store. Mushroom Kingdom, with Peach's Castle, Bowser's Castle, Yoshi, etc. is a "land."
Mini-Land - An area tangentially themed to an associated land, featuring one or two attractions and a shop or restaurant. DK's Jungle would be considered a "mini-land." Mini-lands may expand to become fully-formed lands in the future.
I think, even by establishing things this way, it helps clarify ideas.
(The following is all wishful thinking)
(World of Dreams) DreamWorks - Anchored by a Berk land and surrounded by Trolls, Croods, and Kung-fu Panda mini-lands.
(World of Play) Nintendo - Mushroom Kingdom land surrounded by DK Jungle, Pokémon, Hyrule mini-lands.
(World of Magic) Fantastic Beasts - Paris land paired with Beauxbatons mini-land.
(World of Monsters) Monsters - Transylvania land flanked by Egypt, Amazon, and Scooby-Doo's Creepy Carnival mini-lands.