What CAS additions would you like to see, or believe they will implement in TS4? I really hope they add piercings at some point (maybe with an University EP?) and nails (maybe in a witch pack, sinc...
I would say all of @loubyloulou 's ideas except Heterochromia considering I dont want Sims with multicolored eyes to be spawned 24/7. I want it to be a rare thing among Sims like it is inrl.
I'd also like unnatural hair colors to be genetic for supernatural sims.