Hi! So, I think we already can have custom pronouns. If I'm not mistaken, you can set it on the character customization, or, if not, I think it was in the worldseed. Please correct me if I'm wrong! My memory is not very good (˶ᵔ ᵕ ᵔ˶)
yeah, no, it's just a selection between male, female, and nonbinary. nothing as complex as custom pronouns.
honestly, it kinda ticks me off, the way those options are written, too. like, it should be masculine, feminine, and neutral, if it isn't just changed to let you type in whatever pronouns you want. pronouns and gender aren't the same thing, and "nonbinary" is an umbrella, not a single identity. though, I guess I'm rambling a bit too much about this, lol.