this supposed leak came from GameFAQs;
https://gamefaqs.gamespot.com/boards/259372-pokemon-sword/77821788In my opinion it's actually pretty damn believable, I was inclined to think it was piggybacking on the first confirmed leak that predicted Milo and Dynamaxing as well as other unconfirmed stuff and just adding filler to it but it's honestly not Farfetch'd.