IMO, Pokemon and Hello Kitty sharing a land is kind of brilliant in a way.
- They're both cutesy Japanese series full of wacky creatures. They wouldn't clash too much in a land together.
- The Japanese theme could tie into a larger Japanese area to improve the theme of USF.
- Together, those two IPs basically appeals to kids of any gender.
- Both IPs lend themselves really well to family friendly flat rides. Hello Kitty could basically be anything, a Mater's-type whip ride based off Pokemon such as Tauros and Gogoat would be incredible, a carousel where you can actually ride on a Pokemon's back would be adorable, etc.
- Both are IPs that don't exactly have distinctive locations. HK obviously doesn't really have locations to pull from, but Pokemon also doesn't have a Peach's Castle or Mushroom Kingdom equivalent that's distinctly recognizable by all ages. The closest they have is the imagery of Pokemon Centers which would just be one building, out of many. Not much to pull from when trying to build a huge land. So honestly, it doesn't really need a HUGE land. Something small could work just as well.