Yes, that's exactly what I've thought for several years now. And they should make it really simple by just branding the sets "Space City" year in, year out. They don't re-brand City every year. A Space City line means it wouldn't be limited to just violence-oriented sets, there would be explorers like the Ice Planet team, Space Police, a Space Hospital, a Space Hotel, Blacktron spies, another wave of Space Police, Space Miners, Space Traders, another wave of Space Police...