Just seeking to bump this thread... the thought has struck me that if this is a star-based science fantasy, I'm going to need some planets, aren't I? Both fully integrated into the Star-Raiders setting proper, and examples of "attached" sub-settings, ala how Spelljammer could be played on its own, but also lead you to Dragonlance, Forgotten Realms and Greyhawk?

If this is true... should I start spilling my proverbial guts and share what ideas I have for the galaxy as a whole? Or are you guys not interested in that side of the project?