Pokemon Go New Shiny Pokemon Coming in June

Trainers, a new limited-time event is going live from June 4-June 11, featuring new shiny Pokemon, new Raid Bosses, new Pokemon from 2KM Eggs, limited time Field Research tasks and rewards and other bonuses.
The Adventure Week event will begin on June 4 at 1:00 PM PDT and for limited time players will have a chance to catch new shiny Pokemon, battle against new Raid Bosses, earn cool bonuses, hatch new Pokemon from 2KM Eggs, earn 4x Buddy Candy, receive 10x XP on the first spin of each Photo Disc, complete new Field Research tasks, 50,000 Stardust and 15 Rare Candies when for 50KM walked via Adventure Sync.
There will be new shiny Pokemon released during the Adventure Week event:
- Shiny Onix/Shiny Steelix
- Shiny Lileep/Shiny Cradily
- Shiny Anorith/Shiny Armaldo
The list of shiny Pokemon is getting bigger with every event. There are currently over 240 shiny Pokemon available in the game and a lot more to be released in the upcoming months.
https://www.futuregamereleases.com/2019/04/new-shiny-pokemon-currently-available-pokemon-go/