Suggestions for Minecraft Large Official Online Mode

We can now play Minecraft online through small servers, why don't we sue an official large server to let players who don't know each other from all over the world play Minecraft, we can build a multi-battle system, in the center of the battle for minecraft's characteristic central city, set up player building areas on the periphery of the city, players can expand, move building areas, and the buildings in the building area will be saved and enter the next battle with the player, opening indestructible other player blocks , set up safe zones and danger zones in the city, safe zones are only allowed to be built, dangerous zones are allowed...