It would be really cool if they could add in a pet related career such as a veterinarian or if they had an animal shelter where you could go to adopt a dog or cat and if you could work there too instead of it just being npc.
*Pets just like TS3 and add a new profession like a veterinarian and maybe interactive competitions (i.e. dog show, rodeo) *Seasons (seasonal festivals), "holidays" like new years and valentines day (include fireworks :) *Beaches, boardwalks, resorts, aquarium, small seaworld type of place *Late Night (clubs, restaurants,…