I'm pretty much in, too.
@Seraphim73 has a good point about neighbouring systems! Even if they aren't available for active play, having a few fleshed out for events/excursions/prps, etc, is a pretty great idea.
I also like the idea of focusing on Rebel/Indies, and leaving Imps completely antagonistic. It gives a bit more unity, and there's always the chance for defectors if someone wants a bit of Imperial style.
