It looks like you're new here. If you want to get involved, click one of these buttons!
https://www.youtube.com/watch?v=izoa3d3rMYs - Im using AC Unity as an example.
Black Desert seems to be the only one in the foreseeable future that seems to be heading that direction. Cities should be more than just hubs, it should be its own zone like any other zone filled with its own kind missions and adventures, hell even PvP in back alleys and gang territories.