They don't have to wipe at all. Just create a new solar system with a new economy (and currency and ores, etc) where players can go to through stargates (or wormholes kinda things). When traveling through stargates you can not tak ephysical stuff with you (just an idea). Players then can choose where they want to 'live' or play the game :).   you basically have unlimited options in a new solar system (exactly the same as with a reset) without anybody has to loose a thing (if you c