Alolan forms of Kanto Pokemon are coming to Pokemon Go.
Niantic announced this morning on Pokemon Go’s official site that these alternate forms “will make their way to Pokemon Go in the coming weeks.”
The Alolan forms are variants of some of the original 151 Kanto Pokemon and were introduced in Pokemon Sun and Moon 2016.
Specific Pokemon coming to Go haven’t been revealed yet, but silhouettes in the announcement image include Alolan Diglett, Meowth, Vulpix, Exeggutor, Raichu, Rattata, and more. You can see a full list of Alola form Pokemon in our Pokemon Sun and Moon wiki.