Encrypted mods!
What I mean by this is, in SE4 everyone can see the full game settings. But what if you want to have a real "feeling of wonder" in your game, so you go and create a mod for people to play (or write a script to randomly generate one!
see
http://www.shrapnelgames.com/cgi-bin...;f=23;t=012091 and look at the "d" operator!), and compress/encrypt the files into a single mod file that is not human-readable! Of course the game would still need the ability to read normal mods, but the encryption would make for a more exciting game... you never know what surprises lie in store!!!