The issue really just falls on Blizzard, the community been asking for more Unique Races forever but it seems they deaf ears.
Customisations was all the talk in Shadowlands personally one of the reasons that got me excited I thought this is truely something that’s great and the potential is limitless, it can be expanded insanely to truely make the character feel unique to the player, bringing a great RPG experience, but that sort of fell short…
I think Dracythr customisations maybe be the future we get for further customisations on other races but who knows when that happens. Time will tell I guess, especially about getting future unique playable races… Time will tell.