The new elf Look like a rare unit , dev team also add elf ears to normal unit in some spine PNG in 0.5 version. Though it look like they wasn't finish so they don't add normal elf unit in 0.5.
I kind of interest how they will add rare elf unit , new animation add or reuse sister animation.
From 0.5 materials
It look like they will add more body parts for normal female unit , like horns , animal ears and tail when they add new races.
I think they will add all the adult body type before work on dwarf and small body type
I hope in this game , Rune and NPC/ boss type female can breed with monster.
In MBM , player can't fuck Rune and NPC can't breed with the monsters make the game kind of unfinished to me .