>>54225187>Cosmog's Line, Necrozma, and its forms were allowed into SwSh following the game's Home update>Hero Duo, Eternatus, Urshifu, Calyrex and its Steeds were all allowed into SV following its Home updateGen IX Legendaries will most certainly not reappear in whatever mainline game comes next, but they will be available in Gen X's core games for sure.
>>54225375>I doubt we'll even be getting Legendary Raids since it'd be too much bloat from how many of them exist nowI wouldn't be so sure. Game Freak absolutely LOVES cramming in Legendary marathons these days in order to make up for the lack of post-game content. By Legendary marathons, I don't refer to scenarios where the Legendaries have little side quests attached to them like some species have in The Crown Tundra or Legends: Arceus. More so referring to stuff like ORAS' Hoopa Rings, USUM's Ultra Wormholes, Crown Tundra's Dynamax Adventures, and BDSP's Ramanas Park.
