In Pokémon GO Absol, Surskit, and Nincada now hatch from 7 km eggs. You can find them only for a limited time in the eggs.
What is new? The Hoenn event in Pokémon GO is now in full swing and players are reporting special Pokémon hatching from 7 km eggs. At least three Pokémon are now in the pool of 7 km eggs that were not included before.
Specifically, these are Absol, Surskit, and Nincada. You can get all of them from the eggs that you find in gifts.
Absol, Surskit, and Nincada in 7 km eggs
Why are they in the eggs? In the announcement for the event, Niantic mentioned that Pokémon from the 3rd generation would now hatch from 7 km eggs. This announcement has now been realized and the egg pool has been expanded.

What is special about Absol and Surskit: The two Pokémon could only be obtained from raids until now. They were extremely popular there, as you could also find the Pokémon in their shiny forms.
Some time ago, Absol could already be obtained from field research, but these quickly disappeared again. Now you have the first chance to get both Pokémon from 7 km eggs.
What is special about Nincada: The bug Pokémon first appeared in field research in November. After that month, the Pokémon was not spotted anywhere, and players searched in vain for it.
The Pokémon that can evolve into Ninjask can now also be found in the eggs. This is the first time that you can hatch Nincada.
What else is in the 7 km eggs? So far, no other new Pokémon have been confirmed in the eggs. However, this only happens through the community, and some Pokémon may not have been hatched yet.
Update 01/17: In addition to the three mentioned Pokémon, Anorith, Lileep, and Barboach have now been found in the eggs. They have now been hatched and confirmed by players.
Otherwise, the egg pool of the 7 km eggs should have remained the same. You still have the chance for shiny babies and Alolan forms. A list of the entire egg pool can be found here:
How do I get the 7 km eggs? You do not get these special eggs from PokéStops. You only receive them as rewards from the gifts from friends. So if you want to hatch the new Pokémon, you should open some gifts with an empty egg inventory.
How long will the Pokémon stay in the eggs? It can be assumed that the three Pokémon will disappear at the end of the Hoenn event. The event ends on January 29 at 10:00 PM.
The Hoenn event also brings new raid bosses. Here you can find the complete list:

