My Wishes For The Sims 4

Elementary/Primary School - Like high school years.

Upgraded Get to work pack - More interactive jobs, and more to actually do in the jobs.

Divorced families. The ability to be able to switch custody between parents would be incredible. 

Preteens! 

More defining age features, to make Sims look more their age!

More small let's in the My First Pet Pack.

Fix the problems with toddler milestones in growing together pack.

A more adult pack, age restrictions for purchasing (eg 18+ in Aus 21+ in US) - Drugs, Alcohol, Clubs, Jail etc.