@Claire-Farron Well, Neku did stop the Composer's plans, but I'm sure they didn't end the Games completely. Really, everything ended up returning to normal, as if certain things never happened. Though a certain someone said that even though things were back to normal, they may have repercussions with a certain race. Yeah... I hope that made sense. If not, I apologize. I don't want to spoil people, and I don't know how to use the spoiler tags...
And maybe the new girl is some sort of experiment? I have no idea.
Although part of me still thinks she might actually be Shiki or Eri. I'd kind of prefer if it was Shiki. After all, she has Mr. Mew, and if you cover up part of the girl's hair, it looks like Shiki's hair at the end of TWEWY. It's just longer and lighter (kind of like Sora's in KH2), and she might have dyed her hair, too. She obviously cares about fashion and trends. IDK. I just want it to be Shiki because we got gypped with seeing her at the end of the original game, therefore I want to see her (in all her glory) in the new one.