Bronzebeard dwarfs now include Wildhammer dwarfs. Void elves can include high elves.
As long as it’s still high elves, and the changes represent cultural differences, while not creating genetic differences, I’m fine with that. Same hair colours, but different styles, other jewellery, and other racials. Let void elves choose non-voidy racials, similarly to how Zandalari trolls can.
I do that with Azrathel. He’s very voidy. Ismaor is my attempt at making a high elf. Not perfect, but quite close.
Bronzebeard dwarfs didn’t lose anything when Wildhammer options were added. Nor will void elves with full high elf options.