Rogue guy here. Firstly, I haven't talked with the PLR and my HC yet, so this is just a very personal opinion and not final.
I agree with Evo, that sharing a system with the Xenos might be problematic and pointless. However, I'd be okay with cutting Cassini and move its bases (not all of them) to more useful locations. Currently there's 8 stations in Cassini;
Attica Station
Asteroid station. I'd love to see it moved inside an asteroid field in Colorado. Maybe just near the current jumphole to Cassini in Colorado or alike. Or remove it.
Destroyer Graviton
Destroyer Quietly Confident
Since they're Destroyers, hence moveable ships/stations, it could be justified (in roleplay) that they get moved somewhere else. They could be used as snub-only hideouts in either Colorado, California, Ontario or Texas I think. Just like the one in New York. I really like the concept of having dockable NPC ships.
Foster Base
DSE Junker station. Has a roleplay value because of that anomaly nearby. Still not my task to decide for it.
San Quentin Base
Can be removed. Doesn't even sell ships.
The Nonsense Factory
Shipyard of the Rogues. Should probably stay. My suggestion would be to either hide it very well in the Badlands or Alberta, considering that it's the only system, that is mostly controlled by Rogues.
Toplita Base
Junker base. No idea what its purpose was. I think it had something to do with the Rogue dread and its broken engines. However, that roleplay is finished.
Another Fine Product From The Nonsense Factory
Can be removed. PLR finished its roleplay and SRP'd it. The NPC station serves no more purpose now. Or connect it with the shipyard in case people want to keep it.
I'll edit this post in case I get more input from my members. Also, as said, this is just my opinion. I haven't talked with PLR about the changes/ideas yet.