In the absence of the official announcement, we have the fanarts.
With an announcement that took place in February 2022 with the celebration of the anniversary of Pokémon, Pokémon Scarlet and Purple initially presented their three initial Pokémonbeing these Sprigatito of the Grass type, Fuecoco of the Fire type and Quaxly of the Water type, thus giving rise to a great acceptance by the community.
In this way, although it must be said that we do not know anything beyond the leaks such as the most recent of a possible leak with the new evolution of Eevee, it seems that the evolutions of the initial ones are being a complete mystery, thus giving rise to that the artists are giving everything with the descriptions that are being given of these. And it seems that now it is the turn of the intermediate evolution of Fuecoco.
Incugator is the evolution of Fuecoco made by an artist.
In this way, it has recently been possible to see that on Reddit the user named PaleAd6109 has shared the incagator designwhich is the possible evolution of Fuecoco according to what the different insiders are commenting on, giving rise to a Pokémon with a similar appearance to the initial Fire-type, but with certain elements related to food.
It should be noted that it is being seen that the artists are sharing various fanarts based on Pokémon, giving rise to a Spanish one who has designed the Hollow Knight characters as if they were Pokémon to make the wait for Silksong more bearable, also serving to Pokémon Scarlet and Pokémon Purple. For all this, it only remains to mention that if you want to see the design of Incugator, the supposed evolution of Fuecoco, you only have to see the following Reddit post:
Having said all this, it should be noted that, whatever the evolution of Fuecoco, we will know what this will look like once Pokémon Scarlet and Pokémon Purple launch on November 18 exclusively for Nintendo Switch, these being the titles that will start the ninth generation.