It appears that Pokemon Scarlet and Violet will feature the Arceus characters.
According to the Pokemon Database, Kleavor, Overquil, and Ursaluna are all returning Pokemon (thanks, reddit, via GamesRadar).
In a trailer, Eagle-eyed viwers noticed what appeared to be Zoroark''s Hisuian evolution earlier this year, but Nintendo has not confirmed whether any of the Arecus Pokemon will be included in the game.
It''s also being said around the internet campfire that certain Pokemon will only make it into Scarlet or Violet if transferred through Pokemon Home.
Nintendo has revealed some of the Pokemon to expect with Gen 9: Cetitan, Fidough, Firagiraf, Fuecoco, Grafaiai, Klawf, Lechonk, Quaxly, Sprigatito, and Wiglett.
There will be also new forms of previously discovered Pokemon, such as Wooper, and then there is the Legendary Pokemon Koraidon and Miraidon.
Scarlet and Violet will be released on November 18 for Nintendo Switch.