Just a small feature I feel is lacking in the current game.  One of my favorite ways to play is everything random, this way I have no way of knowing what I am going to come up against and lets the game have a more exploratory feel to it.  I feel that having an option to select a range of civilizations that are available, from 1 to however many civilizations have been made, and the game randomly choosing a number in the range and the civilizations to fill it would be really nice.

For example I have 10 total civilizations and I am going to play a Medium sized map.

Random Civilization = TRUE

Civilization Bottom Range = 3

Civilization Top Range = 7

Game start there are 5 civilizations chosen from my list of 10, but I do not know who they are until I find them.