Niantic has announced a new event and additional content for Pokémon GO. Read on below to learn more:
Update 5/3/2022: After defeating Mega Latios or Mega Latias in a raid, countdown timer goes to zero as if battle was not completed.
Issue Description: After defeating Mega Latios or Mega Latios in a raid, the countdown timer continues and the raid is failed.
Issue Status: Investigating
Mega Latios and Mega Latias soar to new heights in the global Pokémon Air Adventures event
Trainers,
Yesterday we announced some changes to how Mega Evolution works in Pokémon GO, and today we’re excited to announce that two Mega-Evolved Legendary Pokémon will soon make their Pokémon GO debuts!
Pokémon Air Adventures
Tuesday, May 3, 2022, at 10:00 a.m. to Sunday, May 8, 2022, at 8:00 p.m. local time
Pokémon debuts
Mega Latias and Mega Latios make their Pokémon GO debuts in Mega Raids!
Mist Ball
- Trainer Battles: 120 power and a chance to lower the opposing Pokémon’s Attack
- Gyms and raids: 105 power
Luster Purge
- Trainer Battles: 120 power and a chance to lower the opposing Pokémon’s Defense
- Gyms and raids: 100 power
Wild encounters
You can encounter the following Pokémon in the wild.
Timed Research
Timed Research focused on catching Pikachu and Flying-type Pokémon will be available throughout the event!
Complete the research to earn 50 Latias Mega Energy, 50 Latios Mega Energy, 3,000 XP, and an encounter with Flying Pikachu.
Raids
The following Pokémon will be appearing in raids.
Three-Star Raids
Mega Raids
Eggs
The following Pokémon will hatch from 7 km Eggs.
Field Research task encounters
You can encounter the following Pokémon when you complete Field Research tasks!
Event bonuses
New stickers
You’ll be able to get event-themed stickers from the in-game shop. Ticket holders of Pokémon Air Adventures live event from May 7th to May 8th will be able to get event-themed stickers by spinning PokéStops and opening Gifts.
Please be aware of your surroundings and follow guidelines from local health authorities when playing Pokémon GO. Upcoming events are subject to change. Be sure to follow us on social media, opt in to receiving push notifications, and subscribe to our emails to stay updated.
—The Pokémon GO team
Source: Official Pokémon GO blog
Pokémon Blog 
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