To celebrate the launch of Pokémon Scarlet and Pokémon Violet on the Nintendo Switch, Niantic is adding the main characters’ outfits to Pokémon GO.

New avatar items inspired by Pokémon Scarlet and Pokémon Violet on Nintendo Switch are coming soon!

Trainers,
To celebrate the launch of the Pokémon Scarlet and Pokémon Violet games on Nintendo Switch, new avatar items inspired by the main characters’ outfits will be available to all Trainers starting on November 18th, 2022!

Source: https://pokemongolive.com/en/post/pokemon-scarlet-and-pokemon-violet-nintendo-switch-outfit/