I like this idea. I felt my ears droop when I discovered how 'small' SINS would actually be. I'd always imagined the ability to have say 3 clusters, with 5 suns, and 10 planets each, giving ALOT of planets to fight over (150 by my math), and have it 'turn based', in that you would play for like 2 hours, and then save the game. And then you could come back and play later on (like in a week).
So instead of having short 2 hours skirmishs, you could actually battle it out over 10s of hours. There are heaps of games that are play-by-mail that work well (players submit there turn orders a few times a week, so game takes a few months to play out), I don't see why SINS cannot have this as well. I mean, you can play single-player, and save partway through a mission, it would be exactly the same for this big campaign, just bigger still

This idea seems even better after watching the videos Multi made, and seing they did like 7% of the research LOL... It seemed to be though that it was actually well balance, the number of units was manageable, and not too overwhealming. I imagine some scripting and automation will have to be developed for something of this size to be pulled off.
Anyways, I doubt any of this will happen, its a bit too late with only a few months before release. But I'd like the devs to do gamers a service, and make the game modeable as. So the only thing we cannot change is the engine, then we'd be happy