A Nice Mod would be like the ablity to buy & build stations and buy & build upgrades for them.
or
The Ablity to hire a shipping company to deliver things to your station like ships and acommidies
or
The Abilty to make it so when a player registers his clan on there server he will get a battleship where his clan mates can dock and log off. (the ship should be able to move around and dock at specail docks

*note* Please don't critisize me there just ideas that i would enjoy on a server...It would be cool if some did make a mod or has a mod that has atleast 2 of those features