https://www.reddit.com/r/ffxiv/comme...n_live_letter/

"They are aware of requests for options to add things such as tattoos and body hair for your character, and that if they were to implement them, it would be more realistic system-wise to make them equippable items, rather than options at Character Creation."

Butt sliders they mentioned during the latest fanfest. He said that if they did so the textures of clothing/armours would get streched out and look ugly, and that no one would want that. So my guess is that the butt slider won't happen.

Half Breeds I haven't heard they say anything about yet.