wait what happened with the don’t forget theory?

On sans note it’s “ there’s three people smiling together and written on the back is “Don’t forget”“

People thought this was of course sans, gaster, and alphys (or papyrus if going the family route)

HOWEVER with the release of the demo and the song track called "Don’t forget” now in this game there’s a very high chance that instead the note was referring to kris, Susie, and ralsei