I do not know if anyone has already had this idea, but I would like to share it with the community.
My native language is not English and I did not find forums for specific languages (although I believe there are a large number of Portuguese speaking players)
My idea is basically the creation of a world with all civilizations living and battling for territories.
In this world the player can join some civilization.
The goal is for battles to be rare and their results affect the entire world geopolitics (a scriptwriter will be required for those tasks).
Battles need to be scheduled for participants, leaders or parliaments of each player-controlled society can make decisions outside the game and will also affect the geopolitics of the world.
There are many other points that can be said here, but the ultimate goal is that there is a dynamism in the battles, an idea of continuity and a greater immersion in each game.