I think I wrote two very good things for CAS updates, I feel proud honestly haha.
1st: more columns on CAS, that you could choose between 2-3-4-5. I mean I have 10 packs out of 30 and my CAS is craaazy already. (I have the mod but everyone doesn't)
2nd: a thing I miss soooo much from sims 3, to be able to "lock" hairstyle, makeup, accessories and skin details to all of the outfits, instead of having to go through every outfit...
Note: I have only played Sims 4 for about 3 months, but I have played Sims 2 and 3 since I was a kid, so if this is already a thing and I was not at all a genius for suggesting it, well that sucks but whatever haha