[Grandpa Kim]

1. An option to have all races use the same atmosphere. (What a scramble for planets that would make!)
2. Tactical combat in PBW.
3. Eliminate the need to build storage space on planets for resources (mineral, organic, radioactive and cargo). Any planet big enough to hold half a billion people should be able to store all the resources for an entire empire! IMO.
4. Conquered planets much more liable to revolt with a long timeframe to calm them down.
5. Salvage teams to recover ruin tech from otherwise inaccessible planets.
6. Zero movement for ships out of supplies. Supply conservation speed-- ship moves slower but uses less fuel per sector.
7. Temperature zone. Planet must be "X" distance from sun or it must be domed even if all other factors are perfect.

I must have a million more, but that's all I can think of now.