In Okinawa, Japan, a special Pikachu wearing an Okinawan kariyushi shirt will be appearing in the wild, starting from July 22, 2021. This Pikachu will be appearing for over a year. Niantic will also introduce more costumed Pokémon that are available only in certain regions of the world in the future.
Shiny Corsola will also be debuting on July 22, 2021. Corsola can be encountered only in places around the equator (specifically between 26° and 36° latitude).