Universal mode idea

I had an idea of new way to play Minecraft. It is called Universal mode. Universal mode is like multiplayer and realms, but you can have thousands of people in a world. It would be free and you wouldn't have to be on the same server. Everyone would get a plot of land to do stuff like farming or building. All of these plots of land together would make lots of towns and cities with actual people living in them. Players could interact, trade or sell goods, and go on adventures.