Not much is known right now, but I have this interesting idea arc for my AU where Pipp becomes a victim to some type of villain or so, and they end up mind controlling her after Pipp noticed something was off. The mind control was to do the dirty work that Pipp would outright refuse.

Misty has been spying as usual and saw all the terrible things Mind Controlled Pipp did. But the villain figured Misty's scheme and they use Pipp to hypnotize Misty so that she could get tricked into not suspecting a thing and totally forgetting about what Misty just witnessed. The plan will work, for now but a certain white pegasus with hot pink and blue wings, as well as a hot pink and blue mane is sneaking around and no one will notice, she isn't called "Super Sneaky" for nothing. Misty happens to not be good at being sneaky, she isn't really able to be medium sneaky either.

And no, I don't have something solid yet for this, it's just an idea.