Pokémon Go Fests and other premier Niantic events are usually ways for the developers to add new mythical, legendary, and shiny Pokémon into the handheld collecting game. Still, Niantic wants to change how they are perceived.
Steranka here is talking about the Adventure Effect moves both Pokémon got, which made changes to the game when used. This was a big reason to go out and get involved in Go Tour, and something many Pokemon Go players embraced with open arms. Steranka went on to say that everyone seemed to love what they did with these Pokémon, so they became the catalyst for events moving forward.
Moving forward, Steranka and the Go events team want to continue this idea of adding new and exciting mechanics with new events, and said new mechanics and ways to put a spotlight on these Pokémon other than just adding them is “something you can expect to see more of in our major live events moving forward.”
While nothing has been confirmed yet, this could maybe be when we finally see the proposed Z-Move and Gigantamax mechanics make their debuts.