For a limited time, every Egg you hatch in Pokémon GO will feature a Pokémon originally discovered in the Hoenn region. In addition, Super Incubators are now available for purchase via the in-game shop for 200 PokéCoins until February 1. Pokémon GO developer Niantic recently dispatched an additional 23 Hoenn Pokémon, including Nosepass, Camerupt, Aron, Aggron, Trapinch, Flygon, Aggron, Solrock, Lunatone and Cacnea.
Source: @PokemonGoApp