Next Pokémon Go Update Brings Last Batch From Hoenn Region, Rayquaza
According to Niantic's website, the final wave of Pokémon from the Hoenn region will be introduced to Pokémon Go starting on February 9, so players looking for Metagross or Salamence will finally get their chance. Among the other Hoenn additions, the legendary Rayquaza will be added to Raid Battles until March 16.
The update will also make lures last longer until February 23 and shuffle the Pokémon that appear in raid battles and eggs. For more information on Pokémon Go's next community day on February 24, check out Niantic's post.