Oh, Def hair types and style options, improved butts and hip options that I don't have to like always cover up with a jacket, muscle bulk options for specific sections so you can get options like soft muscled pectorals with hard-cut abs (Muscle bulk and cut sliders would be easier to implement), revisions and increased varients for elezen faces, tail fur length to be adjustable in the aesthetician, options for tail accesories (bows ribbons, rings), increasing the job previews to allow for retainers to use the expanded list of jobs, Dyeable Base-Undergarments, increased bust options, Hair options for Viera & Hrothgar...

I'm out of ideas