Update: The weather system will arrive later this month as a separate update, but Gen III Pokémon are still coming later in the week.
Original: Attention, Pokémon Trainers! A big update is planned for release later this week for Niantic's Pokémon GO, one that will surely delight those who grew up playing Pokémon Ruby and Sapphire, if not their recent respective remakes. Among the likes of Treecko, Torchic, and Mudkip, fifty more Hoenn region Pokémon will soon be available for capture within the mobile game—joining their spookier compatriots from the Halloween update—as well as a dynamic weather system that will affect gameplay.
Read on after the jump for more details!