Let's say that for GEN VII, GF finally decides to do a serious pokédex revision. So they finally understand that NORMAL type does not make any sense as a type and decide to disband it with the serious Pokédex retcon. How would you do it vp?
Here's what I'd do.
>More serious Fairy retcon (i.e. Chansey, Skitty line).
>Wave type [which includes all form of waves, including sound] (i.e. Loudred line).
>Beast type for previous normal types with animal features (i.e.Tauros)
>Ogre type for previous normal types with human-like features (i.e. Snorlax type)
>Flying is now Bird type, so the normal/flying pokémon are now just Bird
>Bio type for pokémon which can manipulate their dna structure or are engineered by humans (i.e. Ditto, Castorm, Mew, Deoxys).