here are additions EA can add to the sims 4 base game

Expanded Life Stages and Lifespan
Infants: Introduce infants as a full, playable life stage that bridges toddlers and babies. This would allow for more detailed interaction and developmental milestones like crawling, early speech, and basic toys.
Extended Lifespan Options: Add more granular control over lifespan settings, allowing players to adjust the length of each life stage (infant, child, teen, young adult, adult, elder) or choose from preset lifespans based on their preferred style of gameplay.
2. Expanded Careers and Skills
Freelance Careers: Add a wider variety of freelance careers in the base game, such as freelance photographer, freelance writer, freelance web designer, graphic designer, musician, and more. These could be more flexible and allow Sims to take on various projects or work from home.
New Skills: Introduce more base-game skills, such as home improvement, scrapbooking, photography, meditation, gardening, and sports (beyond the fitness skill). These could provide new ways for Sims to make money or improve their lifestyles.
Career Specializations: Allow for career branching within existing careers like scientist, doctor, and chef, where Sims can specialize in unique areas (e.g., a biotech scientist or a gourmet chef). This could bring more variety and replayability to the career system.
3. More Social Interactions
Expanded Relationship Dynamics: Add more in-depth relationship interactions, such as fights, make-up scenes, heart-to-heart talks, jealousy, arguments, and friendship-building activities. Allow Sims to experience more nuanced connections, such as friendship rivalries or mentorship relationships.
Rivalries & Friendships: Enable rivalries between Sims (both friends and enemies), with specific interactions or events related to competitiveness, jealousy, or grudges that can play out over time.
Roleplay Interactions: Add roleplaying interactions for Sims, such as adopting different personas or playing dress-up, which could influence their social life and interactions with others.
4. New Neighborhoods and Locations
Neighborhood Customization: Allow players to build and customize entire neighborhoods, creating their own unique settings. This could include street layouts, community areas, and types of buildings.
Public Spaces: Add more public spaces, such as parks, beaches, town squares, or even open-air cafes that Sims can hang out at. These would encourage new community-based activities.
World Expansion: Introduce more worlds with different geographical features, such as mountain towns, desert landscapes, or rainforests, giving players more diverse environments to explore and build in.
5. Deeper Family and Home Life
Family Dynamics: Add family dynamics options to let players customize relationships between family members. This could include options like strict parents, distant siblings, or close-knit extended families. These dynamics could impact Sims' relationships and behaviors.
Home Renovations: Expand on the renovation process with tools for more detailed interior design (e.g., modular furniture, adjustable wall sizes) and family-oriented activities like family game nights, movie nights, or home school setups.
Pets Interactions: Give more interaction options with pets, including mini-games, training challenges, and unique bonds that develop over time between Sims and their furry friends.
6. More Customization Options
Expanded Clothing & Fashion: Introduce more fashion styles and clothing customization options, including the ability to design Sims' clothes with custom colors, patterns, and accessories (similar to The Sims 4: Create a Sim).
Body and Facial Customization: Improve body and facial customization, allowing for finer control over features like height, body shape, and muscle tone. This would make Sims feel even more unique.
Hair and Accessories: Introduce a wider variety of hairstyles, hats, glasses, and jewelry for Sims of all ages, making it easier to create diverse characters.
7. Expanded Building Features
More Building Tools: Add more building tools to allow for easier creation of multi-story homes, modular walls, angled roofs, and better interior design. Features like basements and elevated platforms would give players more freedom to design unique homes.
Customization Options: Let players customize elements of their buildings with materials like stone, brick, and wood for more diverse architectural styles, and offer more advanced wall patterns and decorative items.
Gardening & Landscaping: Expand gardening tools with new landscaping options such as fountains, garden lights, flower beds, and paths, encouraging players to pay more attention to the outdoor aesthetic of their homes.
8. Improved Emotional System
Expanded Emotional Depth: Enhance the emotional system to give Sims more depth of feeling—including emotions like nostalgia, homesickness, guilt, embarrassment, or excitement—that can influence interactions, decisions, and overall gameplay.
Memory System: Add a memory system where Sims can remember significant moments, like their first kiss, the death of a loved one, or a family trip, and these memories would impact their emotional state and relationships over time.
9. Expanded World Interaction
Community Events: Allow Sims to participate in community events like parades, food festivals, concerts, sports games, and fundraisers. These events would provide social activities, give Sims something to look forward to, and could lead to more social interactions.
Sim Neighborhood Socializing: Enhance neighborhood interactions, where Sims can engage in activities like block parties, community gardening, or local meetups. Sims could form stronger ties with their community and neighbors, fostering a sense of local engagement.
10. Expanded Social Media and Online Activities
Sim Social Media: Allow Sims to be more engaged in social media through platforms where they can post pictures, promote businesses, or even create viral trends. Sims could have a social media presence, which could lead to influencer careers or opportunities.
Online Shopping & Marketplaces: Add the ability for Sims to shop online, buy clothing, decor, and even food, or engage in an online marketplace to sell items like homemade goods, digital art, or handmade crafts.
11. More Culture and Traditions
Cultural Practices & Traditions: Introduce more cultural practices that Sims can embrace, such as holiday traditions, festivals, rituals, or spiritual beliefs. Sims could have unique customs tied to their background that influence their behavior and interactions.
Diverse Holidays: Add a wider range of holidays with diverse global origins, such as Diwali, Chinese New Year, or Carnival, along with themed activities and décor.
12. Weather and Environmental Effects
Dynamic Weather System: Expand the weather system with more detailed effects such as hailstorms, windstorms, and blizzards. Sims could be affected by extreme weather conditions, leading to power outages, flooding, or heatwaves in certain regions.