I personally would love the ability to set up my own narrative missions and campaign, look at an old title like Freespace 2 for instance, which still has a strong community surrounding it, simply because so much can be done within its system.
This would not only be extremely fun, like a 2 player co-op versus bad odds, the defence of a space station versus specific enemies... It would just be a great idea for the longevity of the game if people can put their own creativity into the game in some way and thus expand it beyond what's already available.
Is this something that might be possible? Or do you guys have an upcoming feature list anywhere where you show the direction you want to take the game in after launch? I'm eager to play what is there already, but am definitely looking forward to future content as well, more game modes, more settings, more everything!