Okay I have a Idea of something we could see in Gen 7 seeing as Fairy has gone over fairly well.

A bit of lore for it
>"after the recent revelation of fairy type futher studies have been conducted into the normal type and it has been found Normal does not really exist. but instead normal Pokemon have been reclassified as Beast, Sound, and Unusual, this was first discovered as a possible miss identification due to the study of porygon being conducted in kanto, they shown that its physical biology was unique among Normal types which quickly prompted further investigation, many pokemon exhibited qualities that that allowed for more precised control of sound, while others showed traits that in no way resembled others of the normal type"

so how would you feel if normal was retconned into Beast, sound and unusual
Beast would include Birds and animals that were formally normal

Sound covers any Pokemon that deals with sound

and unusual would cover other pokemonlike ditto, porygon, and clefairy "assuming clefairy isn't just fairy now"

also Ideas for gen 7 general