UngeheuerLich
Legend
I have played gold and wild elves in ADnD 2e... Since DnD is less than 50 years old, Subraces existed for half its lifespan at least.A lot of the reason subraces where invented in the first place was to give a different distribution of ASIs, which is no longer needed. It was pretty much a 5e thing anyway, not something with a long history.
I suspect some of the more redundant ones will be dropped, like halfling subraces.