Pokémon GO is launching its next GO Pass and GO Pass Deluxe on June 2, giving players a new set of Pass Tasks and unlockable rewards throughout the event period. Trainers who complete the standard GO Pass will have the chance to earn Lugia and potentially Shiny Lugia, alongside additional in-game items and bonuses tied to progression milestones. Players who upgrade to the GO Pass Deluxe can access expanded rewards, offering more premium items and extra incentives for active play. The pass system continues to be one of Pokémon GO’s main seasonal progression features.
Source: Official Pokémon GO blog