That is not from a game design document, these are dreams for youre game. In a GDD you would actually describe how those dreams would manifest themselfes in gamefeatures, assets and so on to make them playable in the game. Also in a GDD are no undefined “or’s” and the whole purpose is to describe how you want to do each of youre dreams in detail. You’re description rather reads like the cover of a game package for advertising " make your mark on History. Build. Defend. Conquer. The world is your canvas, and war is your paintbrush."
In a real GDD you would describe not those results/effects you dream of, but in detail how you want to make them work in the game so all teammembers have the same understanding what is to be build/made. For this you have to adress all the requirements, and how they are planned to be solved/worked off.
Example:
"SB – The “Sandbox” with many towns/cities is spread over an open world with several continents. "
This means among multiplayer also the gamefeature of a) open world. How you want this part of youre dream be turned into reality in the game? In a GDD you would exactly describe that:
What form of a1) dynamic landscape and a2) procedural foliage generation did you choose, what are it’s specs, limits and requirements?
What form of a3) level-streaming did you choose for open world content like the towns? Have you not decided that, then do load tests with the different versions before going into production and coming to an unpleasant dead-end later in case you did not load-test it before.
And so on to further details of each thing required. Nothing will just be there because you dream it up or want it.
So if you call this part of you’re GDD then i have to conclude that you dont even know what you require for youre game nor have an idea how to get this done. It’s the same with youre 400 people that you still dont have but keep on dreaming and posting of youre one game that covers all genres and includes the workload for 400 people which you never get done.
If you want to attract people …and that must be the reason why you post updates, otherwise you would have just hired them…then explain not more of youre dreams for the game, but show a realistic way how you plan to make them come true.
Right now we don’t see a plan, but only that youre not capable of producing one.