I know this might be extremely specific or a strange suggestion, but ever since I used my first fantasia I've wanted an option like this.

I started playing back when Heavensward was the latest expansion, and I started as a female Miqo'te (typical, I know). I played up until mid shadowbringers as the miqo'te without changing my appearance, but after I discovered Hrothgar I fell in love with them and had to change. I've been one ever since, but while continuing the story I noticed all the NPCs and my character's friends now referred to my character as male. I knew it would happen but it still felt so out of place, it felt like my WoL wasn't the same character anymore. I felt like if the characters ingame still referred to my WoL as a female like before, it would give a much better sense of continuation, like my WoL used the fantasia themselves but they are still her on the inside.

The dialogue differences for male and female WoL characters already exist, so I'd love to see some way we can pick which of the two is used regardless of what we look like. I'd be fine if we had to use a fantasia to change this option too, I already bought some extra because I'm waiting for female hrothgar.