I've not seen this mentioned in the thread but I was looking at the website and one of the background images caught my eye.
Seems like I'm able to bring over my Hisuian team to the new game! I can imagine it being post-game obviously but I would love to carry over my team and random shinies.
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It's a shame the Max Raids aren't being carried over because that was the only saving grace SwSh had and even then, you had to go out of your way to get join requests by initiating a wonder trade. Another good thing about Max Raids is that if the servers ever shut down, you can still play locally or by yourself.
Makes me wonder what new multiplayer feature will they have in it's place if it'll have one.