New Races

[tdb]

Have they ever actually confirmed a desire to add the missing genders or was that all fandom speculation?

Back when Shadowbringers was being finalized it was mentioned in a live letter or some such that they'd like to do it but were uncertain if they'd ever have the resources.

Edit: Here: https://forum.square-enix.com/ffxiv/...805-09-2019%29

As you play through Shadowbringers, you’ll learn that both male Viera and female Hrothgar exist. While you won’t meet any in person, if we developers can find a way to address the various problems which are preventing us from implementing them, then perhaps someday you’ll be able to see them for yourself. I want to be clear that this does not mean it will eventually happen, and that I cannot make any promises at this time. I hope you will understand and bear with us.

So that's a bit more vague than I remembered, in particular with how it doesn't specify whether they'd be playable options or only NPCs. But still, the developers are not opposed to the idea of implementing the missing genders.