PLDHさんのイラストまとめ

Artwork of another new rival, Marnie. Her partner is Morpeko, the new Electric rodent with a Dark side. She hopes to become the Champion "in order to accomplish a certain goal."

Say, is that someone in the background...?

Artwork of the new rival, Bede, as well as an in-game screenshot.

Like Leon, Bede received the endorsement necessary to start the Gym Challenge from Chairman Rose. Apparently, he has "other objectives" beyond becoming Champion...

Regional variants return in Pokémon Sword and Shield. Here's the artwork of Galarian Weezing, Zigzagoon, and Linoone. But that's not all!

Early look at the upcoming ARTFX J Dawn (and Piplup) figurine, with Hitoshi Ariga's artwork.

New line-up of merch revealed in support of Pokémon Masters! Get pins, phone cases, etc. with artwork of 12 different characters, from protagonists like Rosa and Dawn, to champions like Cynthia and Steven, and even everyone's favourite Hiker.

N with Reshiram & Zekrom by @_NaokiSaito
Dawn with Piplup by Tomomi Kaneko
Gladion with Silvally by @megtany
Acerola with Mimikyu by @babiry_moob

Lastly, we've got Paulo and his partner Rockruff, who serves as the game's rival and obstacle towards Masters League.

"An exceptional student with a strong sense of justice, he's collecting badges just one step ahead of the main character."

(But what if I dump the protag?)

Names, details for the presumed villains:

* Lear: "prince from unknown country," built Pasio and organizing its league after losing to "certain Trainer wearing a hat."

* Sawyer & Rachel: Lear's staff. Rachel respects Lear's single-mindedness, "despite his arrogant nature."

New Pokémon Master characters:

"Professor Bellis is the Pokémon Professor on the artificial island of Pasio. She's researching the relationship between Pokémon and sync stones, which are needed for sync moves."

Name appears to pun on her being... an actual cat.

Close enough.