Hoenn Pokémon Eggs event took place from January 23rd to February 1st, 2018. All Pokémon Eggs acquired during this event were hatching only Pokémon from the Hoenn region. Also new promotional offer was available in the shop by the same time. 
Pokémon Eggs hatchlings
Only these Pokémon were hatching from eggs during the event. After this time the all hatchlings were the same as prior the event.