I would love to see larger neighborhoods that we can edit (outside of the active lot) so there could be fully customizable community spaces that would be open, including any shops that were built there. I would also like more continuity between neighborhoods - they don’t really piece together as they are now, and it makes it feel disjointed. Then take it a step further and have the “worlds” fit together in an actual world map that’s not Earth. A world-building tool would be fabulous, as well, that we can shape as we like and customize the terrains and weather in defined sections. Of course, this wouldn’t be at all likely in the Sims 4 but could be in a future iteration.