I would love this sooooo much. I'd love if there was a dragon inspired pack with decor that ranged from Medieval, Renaissance, Victorian with some Magic to Steampunk inspired technology.
Scrolls for writing, crystal balls, messenger birds (pigeons, crows or owls) and other objects as communications devices (instead of computers/mobiles).
A sort of Davinci inspired oversized orrery, and the invention skill. Zodiacs added, and calendar update/editing (let us pre-plan the year for birthdays, events and holidays and remove/edit/add holidays/events better). Birdcage Victorian elevators, cast iron spiral stairs, round/curved stairs for curved walls/towers. Steam/magic items for off grid gameplay.
Dragons as familiars/companions, cat to dog sized pets and horse or larger sized for ridable. Dragons that are skill specific (like Sims 3 store versions) or occult specific. I'd love the idea of a dragon that guards a garden and helps out. Or that eats gems/crystals/metals. Heats a home, and other fun things.
Occults getting a compatibility/immersion update. Allowing non-broken hybrids, and just overall more cross-pack occult cohesion.
World could be compact city living, sky world, or subterranean. An update/expansion to crystals and gemology.