The Pokémon Company has confirmed that Mew and Mewtwo will be added to the mainline Pokémon game, Pokémon Scarlet & Pokémon Violet. The mythical Pokémon will be obtainable during the Tera Raid (7-Star) on August 31, 5 PM PDT until September 17, 4:59 PM PDT, brave players who complete the challenge will be able to catch Mewtwo with the Mightiest Mark.
Moreover, Mew is now obtainable using the Mystery Gift code: GETY0URMEW, until September 18, 7:59 AM PDT. Keep in mind that the code can only be redeemed once per save file, with different Tera Type, Nature, and move sets.
Besides that, The Pokémon Company also released a new trailer for the upcoming Pokémon Scarlet & Violet DLC, The Hidden Treasure of Area Zero Part 1: The Teal Mask, which launches on September 13th. Players will be on a school trip to the land of Kitakami for an outdoor study program held between the academy and another school to meet new Pokémon that are uncommon in the Paldea region.
More information about the Pokémon Scarlet & Violet DLC can be read here.