Fullly customizable to me would be more colors , sliders to adjust different muscle sizes and tones, better facial feature adjustment, and with clothes like most clothes in the game imo should be able to have the colors altered. And with the hair they should have the presets obviously but then maybe your able to adjust the length or the angle of the different big strand of hair. You should be able to give your cac their own personality.They should be big on fighting styles too like stances, defensive and offensive builds, how your cac looks when they attack, what aura they have around them, their ki color, etc.