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...
More tattoos/tattoo locations (we've got some cute bikinis but can't do belly button tattoos)
More facial hair
Body hair
Necklaces (I was disappointed that we didn't get a simple strand of pearls in GF)
Maybe a new Accessories category that would cover purses/backpacks that Sims could wear/carry, and clicking on them would be a shortcut to personal inventory.