Niantic has officially announced Pokémon GO Season 20: Tales of Transformation, set to run from September 2, 2025, to December 2, 2025. This new chapter promises one of the most transformative updates in the game’s history, headlined by the long-awaited debut of Keldeo’s Resolute Form, new Mega Evolutions, Gigantamax battles, and even a long-requested level cap increase.
🐴 Keldeo’s Resolute Form Finally Arrives
The centerpiece of Tales of Transformation is a Special Research storyline dedicated to Keldeo, the Generation 5 Colt Pokémon. For the first time, trainers can evolve Keldeo into its Resolute Form through a season-long journey. Trainers who already own Keldeo will still benefit, gaining access to extra Keldeo Candy to strengthen their partner.
💥 Mega & Gigantamax Debuts
This season will be packed with new raid challenges and evolutionary surprises:
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Mega Evolutions: Sharpedo, Camerupt, and the highly anticipated Mega Metagross
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Gigantamax Pokémon: Gigantamax Garbodor, Dynamax Duraludon, and more
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New Evolutions: Pokémon like Dipplin and Hydrapple will make their Pokémon GO debuts
Trainers can look forward to multiple Mega Raid Days and Dynamax encounters throughout the three months.
🌍 September 2025 Event Calendar Highlights
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Sept 2–7: Kanto Celebration Event with Dynamax Legendaries + Mega Sharpedo Raid Day
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Sept 9–14: Netflix’s Pokémon Concierge tie-in event
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Sept 14: Community Day (Flabébé variants + regionals)
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Sept 18–22: Debut of new Pokémon and Dynamax specimens
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Sept 28: Mega Metagross & Dynamax Duraludon
Additional Community Days will take place on October 12 and November 30.
⚔️ New Threats & Battle Changes
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Team GO Rocket escalation: Shadow Groudon debuts in Shadow Raids
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GO Battle League calendar: Updated to sync with the season’s events
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GO Pass progression track: Earn rewards through GO Points, with a Deluxe version offering faster progression
📈 Major Gameplay Update – Level Cap Increase
For the first time since Pokémon GO introduced level 50, Niantic is raising the cap. On October 15, 2025, trainers will be able to progress up to level 80. This rebalanced leveling system comes with:
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New milestone rewards
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Cosmetic unlocks
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Retroactive XP boosts that may instantly increase trainer levels
From Aug 25 to Oct 14, special XP bonuses are active, including 2× Throw XP, +3,000 XP from raids, and over 7 million XP available via Timed Research.
🎉 Why Tales of Transformation Matters
Season 20 coincides with the fifth anniversary of Pokémon GO’s seasonal structure, first launched in late 2020. The model has allowed Niantic to deliver bigger, more consistent updates while giving trainers multi-month arcs and strategic gameplay. Tales of Transformation represents the most ambitious update yet, pushing forward with:
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Fresh forms & evolutions
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Competitive play integration
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Narrative-driven seasonal arcs
With Keldeo Resolute Form, Mega Metagross, Gigantamax battles, and a groundbreaking level 80 cap increase, Pokémon GO’s Tales of Transformation is shaping up to be a milestone season for the mobile giant. Trainers should prepare now by stocking resources, leveling teams, and marking calendars for the September 2 kickoff.