There are only 4 on my list
1. Witches - My Horry Potter side is reasy to come out, I need it to complete my whole supernatural in sims experience.
2. Seasons - Sunmer is fine but Winter is magical. B)
3. More Unique Sims - Other may say we need a new game for this, but the 2 patches in 2015 made these sims unique on some instances such as on jelousy, death and fire reaction, depending on traits and relationship. They said that they will continue to improve and make these sims unique in more patches to come, but the last one was the Pre-Get Together Patch. Still hoping they are doing that.
4. Memories - This one feature made sims 2 sims magical. We need actual memories that a sim actually remember not just an emotion changer, memories that can affect a future sims life.