here are some additions EA can add to sims 4 island living

More Island Activities and Events
Beach Parties and Festivals: Add events like beach bonfires, luau parties, or tropical music festivals where Sims can socialize, dance, and relax by the beach with friends and family.
Surfing Competitions: Allow Sims to enter competitive surfing tournaments, either as a way to level up skills or as a social event.
Fishing Tournaments: Sims could compete in fishing competitions, where they try to catch the biggest or rarest fish to win prizes or reputation within the community.
Cultural Festivals: Include events tied to the local culture and traditions, such as traditional dances, music performances, or local art fairs that showcase island life.
2. Expanded Island Huts and Beach Living
Larger Customization for Beachfront Homes: Give Sims more customization options for building beachfront homes, including new tropical furniture, palm trees, beach huts, and more. Players could design houses that sit right on the sand, adding a layer of personalization to island living.
Bungalows and Overwater Villas: Introduce overwater bungalows or beachfront cabins that Sims can live in. These could have glass floors, allowing Sims to see the ocean beneath them, along with new tropical decor options.
3. New Tropical Careers
Marine Biologist: Allow Sims to work in a career focused on marine life and conservation, such as a Marine Biologist or Environmental Scientist. This career could involve studying the local wildlife and advocating for environmental protection.
Tropical Resort Manager: Sims could work as a resort manager, overseeing operations, planning activities, and catering to tourists, while boosting the local economy.
Beach Guide or Tour Operator: Sims could lead island tours, showing visitors around local attractions, teaching them about the island's culture, or guiding them on nature hikes, eco-tours, or fishing trips.
Water Sports Instructor: Introduce careers where Sims teach surfing, scuba diving, snorkeling, or other water sports, offering a fun, hands-on job that involves the local environment.
4. More Wildlife and Nature Interactions
Island Wildlife: Add more wildlife interactions, including the ability to adopt wild animals like turtles, seals, dolphins, or even small island monkeys as pets or companions.
Animal Conservation: Sims could participate in activities that contribute to wildlife protection or even run animal rescue shelters, focusing on sea turtles, birds, and other local creatures.
Tropical Plants and Gardens: Expand on gardening by introducing new tropical plants and flowers for Sims to cultivate, such as orchids, hibiscus, or palm trees. These could also be part of the eco-living aspect of the game, allowing Sims to grow plants that contribute to island preservation.
5. More Island Locations and Environments
Hidden Islands or Caves: Introduce new hidden locations, such as remote islands or underground caves where Sims can explore, discover treasure, or encounter rare species of animals and plants.
Underwater Exploration: Allow Sims to dive deeper into the ocean, discovering shipwrecks, hidden caves, or even secret underwater ruins, which could reward Sims with rare collectibles or opportunities.
Volcanic Activity: Given that some island regions are volcanically active, introduce a volcano that occasionally erupts, creating lava flows, and affecting the local environment or Sims’ lives. Sims could work to protect the island or help rebuild after eruptions.
6. Tropical Weather and Climate Effects
Tropical Storms and Hurricanes: Introduce tropical storms or hurricanes, adding a challenge for Sims living on the islands. Sims could need to prepare their homes for weather events by securing windows or reinforcing roofs. These storms could cause damage to property or interrupt island activities, adding realism to the living conditions.
Climate Change Effects: Implement gradual climate change where rising sea levels, extreme weather patterns, or coral bleaching affect the environment, requiring Sims to participate in eco-friendly initiatives to help preserve the island’s ecosystem.
Dry Season: Add a dry season that impacts the island’s agriculture, water resources, and wildlife. Sims would need to adapt to the changing seasons and weather conditions, such as managing water usage or planting drought-resistant crops.
7. Cultural Influences and New Traditions
Island Traditions and Rituals: Introduce new cultural rituals, like traditional dances, ceremonies, or festivals that Sims can take part in. These could involve interacting with other islanders, wearing special attire, or participating in community-building events.
New Foods and Recipes: Include local island dishes, such as tropical fruit salads, grilled fish, or coconut-based desserts, that Sims can cook or sell at beachside food stalls. Sims could also try their hand at making traditional drinks like tropical cocktails or smoothies.
Cultural Clothing and Accessories: Add island-inspired clothing like sarongs, flowy dresses, or woven hats. These could be part of a special set that Sims can wear for cultural events or casual beach days.
8. New Interactions with the Ocean
Snorkeling and Scuba Diving: Introduce scuba diving and snorkeling activities, where Sims can explore coral reefs, swim with dolphins, and discover hidden underwater locations.
Swim with Dolphins or Whales: Add interactions where Sims can take part in eco-tourism by swimming with dolphins or whale watching, deepening their connection to marine life and providing a fun vacation activity for tourists.
Island Cruises: Allow Sims to take part in cruise tours, where they can travel between different islands, learn about the local culture, and meet new Sims along the way.
9. Expanded Building and Customization Options
Tropical Landscaping: Add more landscaping options like beachfront paths, tiki huts, fountains, or even outdoor furniture perfect for a beach lifestyle.
Swimming Pools and Hot Tubs: Introduce infinity pools or hot tubs designed for oceanfront views, enhancing the relaxation experience of island life.
Community Lot Enhancements: Add more types of community lots, such as open-air markets, beachfront cafes, or tropical resorts where Sims can work, gather, or socialize.
10. Expanded Social and Romance Interactions
Island Romance: Add tropical-inspired romance options, such as beachfront weddings, picnics, or romantic moonlit walks on the shore. Sims could also experience summer flings that are more spontaneous and laid-back, with a unique island vibe.
Family Activities: For Sims with children, add more family-friendly activities, like sandcastle building, fishing with kids, or kite flying at the beach.
11. More Build/Buy Items
Tropical Furniture Sets: Add furniture like hammocks, woven chairs, tropical rugs, and driftwood tables to enhance the island living aesthetic.
Beachfront Items: Include items such as beach towels, surfboards, sun umbrellas, and beach balls, allowing Sims to fully embrace island life in their homes and outdoor spaces.
12. Environmental and Eco-Friendly Features
Eco-Tourism: Allow Sims to run eco-tourism businesses, providing tours of the natural island environment and promoting sustainable living practices. Sims could even receive rewards for engaging in conservation efforts and protecting the environment.
Trash and Recycling: Introduce more ways for Sims to engage with recycling or trash collection, allowing them to clean up beaches or help with island-wide initiatives to reduce plastic waste or promote green living.