Random ideas my turn:
Build mode:
-Awning tool
-Roof gutters
-Auto roofs option
-Natural ponds
-Aquatic plants sort
-Ceiling paint
-Greenhouse
-Spiral staircases
-Attic tool/room view
Buy mode:
-Auto sofas
-Tub option for small showers (toddlers and pets washing)
-More toddlers beds
CAS:
-Body hair
New swimming pool items:
-Diving board
-Water slide
New musical instruments:
-Bass
-Drums
-Saxophone
New recreation item:
-Pool table
New active item:
-Karate board
New knowledge items:
-Telescope
-Microscope
New small appliance item:
-Deep fryer
Hobbies items
-Sewing machine
-Pottery table
-Sculping station
-Glassblowing station
-Blacksmith station
-Ballet barre
-Soccer/Football barre
-Axe throwing target
Gambling items
-Poker table
-Slot machine
-Roullette table
-Blackjack table
New chores:
-Wood chopping
-Swimming pool cleaning
-Lawn mowing
-Aquarium care (feed, cleaning)
New lot type
-Scuba diving lot
New systems:
-Water heaters
-Propane tanks
-Wi-fi access
New lifestages:
-Pre-teen
-Elder adult
New schools, each with reward items:
-Private (reward: mini golf)
-Military (reward: obstacle course)
-Industrial (reward: junk for restoration)
-Agronomy (reward: chicken coop)
-Sports (reward: archery range)
-Arts (reward: drafting table)
-Coulinary (reward: pizza oven)
-Posh (reward: vintage camera)
Gameplay:
-Locking grills
-Playable pets
-Fire alarm upgrade for kitchen hoods
New skills:
-Sewing
-Pottery
-Jewelry
-Sculping
-Forging
-Ballet
-Saxophone
-Drums
-Bass
-Scuba diving
-Karate