Pokemon Go Druddigon Debut during Dragonspiral Descent event

Trainers, the Dragon-type Pokemon Druddigon is making its Pokemon Go debut on December 7, 2021.
The next event in Pokemon Go called the Dragonspiral Descent is an event inspired by the Unova region’s Dragonspiral Tower. The event will take place from December 7, 2021, to December 12, 2021. The event will bring cool bonuses and a new Pokemon for the first time seen in the game.
The Dragon-type Pokemon Druddigon will be making its Pokemon Go debut. We might even get a chance to see and catch Shiny Druddigon, but this is not confirmed at the moment.
As per the official Pokemon website:
On December 7, 2021, the Dragonspiral Descent event sees another Pokémon GO debut when Professor Willow catches sight of the Dragon-type Druddigon, kicking off some important Research Tasks.
The Pokemon Go Season of Heritage has started, bringing new events, bonuses, new Pokemon, shiny Pokemon encounters, and much more.
For last, Bergmite will be making its Pokemon Go debut soon, most likely for the Holiday 2021 event.