Corocoro Comic June 2021 (月刊コロコロコミック 2021年6月号)
PROJECT MEW
A huge number of Legendary Pokémon appear before Satoshi and Go, the boy who's chasing the Mythical Pokémon Mew!!

Shigeru shows up! The road to Mew grows wider!!
FIRE APPEARS!!
Shigeru has returned to the Kanto region for a certain reason. Does this reason involve Fire?!
*Shigeru is Satoshi's rival and (cut off)
*Satoshi and Goukazaru take on Fire!
*What does the Legendary Pokémon Fire want?!

Airdate May 28th: "Rivals for Go?! The Road to Mew"
Go learns from Professor Okido that Project Mew is recruiting members. Meanwhile, Satoshi encounters Shigeru while looking for Goukazaru...?!

FROM WULAOSU TO REGICE! LEGENDARY POKÉMON WILL APPEAR ONE AFTER ANOTHER!!
They can be seen in the trailer available of the official Twitter account (@anipoke_PR) as well!
*The new Legendary Pokémon Wulaosu will soon appear in the anime!
*(cut-off blurb about Regice)