I dont really get why need a puzzle etc, just spawn asteroids around a planet deep in PvP zone, ( Ion, Symeon etc ) make sure that they are rich on high tier resources, since there is no ship mining etc, sadly there have to be a safe zone around the asteroid so people wont lose their ships while there are inside a hole. But make it small 0.5 SU or so.
Than let the combat begin....
A hammer is all you need to drive a nail, stop trying to build a nuclear powered, smart hammering solutions. Just spawn some rocks with ores in it, THAT is all we are asking for. No puzzles etc ( because lets face it, last puzzles NQ created was terrible )