[llamabeast]

The changing map one isn't I'm afraid. The map is fixed once the game starts. Well, you could change the picture, but not any of its actual properties or connections.

What you can change mid-game is mods. So you could have new units become available during the game or something. You could probably have everyone gradually change from the EA to the LA version of their nation through the game! But that would take a lot of work.