I would suggest,
1. Removing that map problem.
2. Making V1.05 mods work with it. It could have 2 mod areas. One for V1.1+ and another for V1.05.
3. Have the forge tools merged with the game. In the options menue there could be the GF and PF tools.
4. Add the Solar Sins Planets to the game.
Remember these are only a few of the suggestions that i have.
Anny other suggestions just post them here and i guess wait until Stardock replies.
Doberman211