Will the hatch-able Pokémon go back to what they were

When community day is over will the Pokémon in eggs change back because Tyrouge was in the 2km egg and I’m trying to get a shiny so I really need it to go back

Welcome, Ted. You aren’t the only one who’s been chasing the shiny Tyrogue. But Niantic lists these as the 2km egg hatches after today and for the rest of December::

Eevee (holiday hat)
Smoochum
Galarian Darumaka
Amaura

Shiny Tyrogue is sure to return, probably in 2024, and hopefully more than once. I’m chasing that one, like you, but not too sad about the change, because the Galarian Darumaka’s evolved form is a great Ice type attacker (even if it’s a bit of a ‘glass cannon’), and its shiny is really neat, too, in both evolved (Darmanitan) and unevolved form…