Currently, I'm not a big fan on not being able to see what the map will look like before starting a custom game.

My suggestion is that a feature be added to the custom game menu that would let us preview the map that will generate, as well as generate a new map if we don't like it. Too many times I've started a game, only to find out that islands with vital blueprints and/or manufacture abilities are located really far from my starting island.

This feature would remove the hassle of needing to start new games several times before finding that "right" map for our liking.