And I think DMs will come up with new mechanics like realm attrition to add a drop of entropy into the mix.
There are really no GMs/DMs active in the game. We have a dev team, but the dev team has a hands-off policy. We do not intervene in the game in any way. If the players want something to happen, then they have to make it happen on their own.
There are two notable exceptions:
1) On very rare occasions, the dev team has intervened to implement some extensive game-wide change, such as the recent partial freezing of islands, and the Dark Tidings that reshaped the EC map about ... 8 1/2 years ago. (You can search for that on the wiki, if you're interested.)
2) BT has had regular monster invasions, the last several of which have been led by volunteer GMs.
But in any case, the dev team does not intervene to due to any political situations or IC events, or to shape the development of events or realms.