Happily, it should be possible to make thick asteroid belts that interfere with large ship pathfinding within gravity wells. This will add a nice tactical touch around systems like Hoth.
Hmmm, looking at the sector maps at
http://www.xs4all.nl/~wrvh/galaxymap/ , I think we could actually make a campaign that is divided into sectors as well. Of course, Sins can apparently handle all those sectors at once...however, not everyones computer can handle it.
It there were a way to allow more than 10 players, that would be great. I'll go ask the devs if it will be possible.