I thought the same thing. We can't be sure but I hope its true..too..There's still possibility though.
what would you want it to have in it? (I mean, what PokéShipping hints/moments would you like the episode(s) to have?)
One thing that I really want to see when Misty returns is to have a tag battle with Ash..fighting off Team Rocket. I really want to see them battling together and save the day! lol. But yeah, seeing them bickering, having concern for each other or perhaps travelling together are some of the things I like to see again..:)