It's not impossible, I suppose, but I feel that's something you'd put on a "hey check out what you can do now!" list to hype up the tundra.My personal guess is that they will introduce an item or mechanic of some sort which allows a Pokemon to change to its Hidden Ability. They seem to be moving towards "the only thing you need is a member of that species", in order to allow people to make their favourite shinies etc relevant. HA is the last holdout. Additionally, they seem to be moving more towards shiny versions of otherwise shiny locked legends as rewards for things, and away from exclusive hidden abilities.
I'm interested to know how the Kantonian birds will be handled, given that all signs suggest that they won't be available in SwSh, and it would be weird to have a trade available for what seems to be a unique species.
Also tbh kind of feels like something they'd do in Isle of Armor, which is very heavily focused on stuff like this. Max Soup, cheaper vitamins, new tutor moves, etc.
From the placeholders it seems notI think they'll just be in Dynamax Adventures like the rest of the legends.
Well, at least the map isn't actually visible... :p
Good to know there are several more fly locations than in IoA (from a subsequent tweet). Cautiously optimistic that CT is shaping up to be a decent bit longer and larger than IoA.
From Matt's reply to that thread, here's his speculative list (I guess birds also have separate flags, in addition to regis and swords of justice?)