Stuff Pack
Happy Haunts with the spirit board and tarot cards. Also, maybe see the return of the fortune telling career.
Game Pack
A party game pack that expands the party system in the game. Baby showers and funerals will be introduced as new features. Also, the pack will add more content for birthdays (pinatas, pin the tail on the donkey, etc) and weddings (more wedding cake options, wedding arches, wedding venues, etc). Also, Sims will FINALLY remain seated at weddings (which is something I've wanted FOREVER)... maybe we can also have the option to host a live band at parties as well (orchestrated bands for weddings, private concerts for birthdays).
A free patch with cemeteries as a lot type (which a mausoleum that functions similarly to Sims 3) would be a nice release alongside this pack.
Expansion Pack
Either farming or amusement parks... I'd love to see either one added to the game!