I’ll make a list of things that would be important in future updates and DLC, based on player requests:
1. Pets & Animals
Classic pets: dogs, cats, birds, rabbits, horses.
Exotic pets: turtles, iguanas, ferrets.
Care system: feeding, playing, teaching tricks.
Veterinarian career and clinics.
Pet competitions (races, tricks).
2. Events & Holidays
Seasonal celebrations: New Year, Carnival, Christmas, Halloween, local festivals.
Unique local events (music festivals, street fairs, parades).
Official calendar system with holidays and weekly mini-events.
Community activities: contests, fireworks, cooking competitions.
3. Active Careers (playable jobs)
Tattoo artist/piercer (design and apply tattoos).
Teacher (teach classes, interact with students).
Chef (cook live in restaurants).
Musician/DJ (performances, mixing, concerts).
Actor/actress (participate in movies, soap operas, commercials).
Police officer/detective (investigations, crime-solving missions).
Doctor/nurse (hospital work, emergencies).
Lawyer/judge (trials and legal cases).
Farmer/fisher (expanded from the new DLC).
4. Domestic & Social Life
Children and teens with more interactions (clubs, active schools, friendships).
Deeper relationship system (jealousy, rivalries, reconciliations).
More complete weddings (big parties, honeymoons, religious or secular options).
Inheritance and wills (impacting future generations).
Expanded hobbies: dancing, sports, painting, writing.
5. Building & Customization
More architectural styles (colonial, futuristic, medieval, industrial).
Terrain tools (adjust height, rivers, lakes).
Interactive decoration (custom paintings, in-game photos).
Elevators, escalators, and internal transport in tall buildings.
More vehicles (bicycles, usable public transport).
6. Worlds & Exploration
New themed cities (futuristic, medieval, Asian metropolis, European village).
Tourism system (travel abroad with culture-specific activities).
Active university (courses, dorms, parties).
Expanded businesses (cafés, bars, fashion stores, tattoo studios).
Rural expansion (larger farms, livestock, wine/cheese production).
7. Nature & Weather
Natural disasters: tornadoes, floods, volcanoes, earthquakes.
Dynamic seasonal weather (more realistic transitions).
Survival in extreme conditions (blackouts, droughts, heatwaves).
Sustainability: solar panels, recycling, community gardening.
8. Gameplay & Quality of Life
In-game social media app (posting pictures, gaining followers).
Multiplayer/co-op mode (visit friends’ cities, host parties).
Story/campaign mode (narrative-driven objectives).
Official modding tools (community-created content).
VR integration to explore houses/cities in first person.
Of course, it’s a suggestion for future updates, and I believe that this will make the game much more complete and realistic.