After all, with Earth-38 gone, Earth-1 is the most logical place for the Supergirl story continue, although it would be quite a drastic shift, because although these two Earths are quite similar, they also have some notable differences, namely with Earth-38 being populated with a lot more aliens.
Ever since the Arrow-verse confirmed it was adapting “Crisis on Infinite Earths,” I’m surely not the only one whose wondered if one of the main consequences of the event will be Supergirl and her supporting cast being moved to Earth-1.