Gamers are sociopaths when it comes to treating people with respect, so just remember that any perceived slight at this suggestion is because they have a closed or empty mind.
This is probably not too trivial to implement, it just would just make things hugely confusing for the non-English locales since English doesn't have gendered language where as French is rather heavily gendered. If we were able to create a truely "gender neutral" character at creation, ie, women characters with no chest/butt, allow facial hair options, men characters with ... you know what they're probably close to neutral enough without adding a bust and butt slider. That's still a trivial tunable, rather than creating entirely separate gender-specific gear models.
The reason people ask for such things is because they want a character that represents themselves as they are rather than playing a game with a fixed set of options. It's only been relatively recently that any MMO even allows for gay marriage, so games are just a decade behind where society finds things acceptable.
The trouble really is that NB, TG, and various other agender terms is that there is zero agreement on anything but singular "they" for language. If you don't know what someone is, you dehumanize them by calling them "it", and insult them by using any gender-determinate language, especially after they tell you what they want to be called. Voice chat adds an entire additional layer of sociopathy, and it ultimately makes any MMO far more toxic for it. If it were possible for the game to do voice analysis and then turn that into it's own character-specific speech synthesis, I think that would be removed as a toxicicity barrier.
Anyway I don't see any changes in this regard happening to FFXIV, not because of lack of interest, or developer inertia, but that there just isn't really any need for it, since the underlying motive (people identifying as agender, non-binary, transgender, etc) for it hasn't reached a similar level of acceptance in conventional media.
https://hornet.com/stories/ap-non-bi...nder-pronouns/
So the easiest way for the game to adapt, is to really just do what it's been doing all along and either referring to the WoL as WoL or the player's name, depending if it's a voiced or unvoiced scene, and use the players name instead of a pronoun even when they're being referred to in third person or not-present.But now, the AP Style Guide is permitting the use of singular “they” for people of non-binary gender.
The style guide now reads:
In stories about people who identify as neither male nor female or ask not to be referred to as he/she/him/her: Use the person’s name in place of a pronoun, or otherwise reword the sentence, whenever possible. If they/them/their use is essential, explain in the text that the person prefers a gender-neutral pronoun. Be sure that the phrasing does not imply more than one person.
Retrofitting the existing Engish dialog is probably not that trivial, but there's probably a lot of flavor text that goes (player's pronoun) where it can be replaced with (player's name) except where someone has specific kind of 'tic that was phonetically localized. I'm not sure if there are any, but I know that some text in the game is presented different depending on your race, gender or GC.