I believe Gobbles made the existing main menu, so that means it must be replaced. And I've had an idea for a while. Have something similar to the side bar with the different options, but instead of a film strip, render the player's character, floating in front of a random map preview background that cycles. You can then have a button right on the sidebar for the customization menu overlay, allowing you to change your character right there, including your in-game name.

Your in-game name is dependent on your Cemetech username (hence the existing box when at the main menu), but I like the idea of editing your character at the main menu, only do away with the map previews in the main menu altogether.

I like some of the ideas there too, I can definitely see a main menu rework coming out of that.