As far as the butt thing goes - I'd be happy if they just gave us a tiny bit more roundness to balance out the rest of the figure. Doesn't need to be huge butts (although a slider would be nice) - just so my poor femroe doesn't look like a lego character in tight pants. As it is now except maybe female aura and lala the characters are just look oddly proportioned when it comes to butts.

I have a theory that a lot of the body piece design has been developed around disguising that we have no butts. All the attached belts stuff, skirts, frills etc.

I'd also like more tattoo options, body scars, better long hair up-dos (to reduce clipping but still be long hair), maybe even silly things like body glitter and nose rings.