I strongly disagree with this proposal. It is the only truly unique feature of a server that you can see the history of who played and where their cities were. It creates a sense of story and there is no reason for removing them.
I hope you don't consider this proposal!
To make a counter proposal, you could add more "historic" features on the map. If a big battle has taken place, you could place monuments on the map to honor who took place in the battle and show the troops that were killed. It would add a lot of atmosphere to the game.