What I want to see are uncharted systems, but accesible all the time, not only one few days per month.
They are supposed to be accesible through dynamically generated jump holes across all Sirius.
After few days jumphole despawns and there will appear new one leading to another uncharted in new location.
I see uncharted systems as one of next:
1) Just sightly systems with mining or anomaly zones or connection to another uncharted.
2) Whole nebula labyrinth, if you go out of the way, you will die to insane deadly explosive clouds.
3) Nomad Vagrant barely habited systems, with some ship wrecks or Dom'Kavash structure remains.
4) Dom'Kavash systems with more remains of their things, with logical puzzles to solve, some of them may be made via FLHook.
5) Again Vagrant systems, this time there must be insane count of them, so passing through the system would be ultimate challenge... for non-nomads.
6) Systems with combined radiation and explosive clouds with insane damage, dense enough to allow only fighters to pass, one wrong maneuver and you are dead.
They must to:
1) Have object of interest. That may be ship wrecks with loot that becomes the more valuable the more challenge system gives. Or mysterious and bizarre things such as unusual starsphere and music or Dom'Kavash/Nomad objects. Or simply mining/anomaly zones.
2) Don't be easily accesible. Disco may have large set of 20 uncharted systems, but accesible will be only few of them at time via randomly generated jumpholes which exist only few days.
3) Have exit hole to normal space. There may be uncharteds to which lead one way jump hole and once your ship occured in it, you have to find way out of here yourself.
4) Be restricted for jumping in. Really, what is purpose of all these efforts with random holes for their exclusiveness, if people can simply jump to them.
5) Be invisible for map editors or navmap by spawning solars dynamically, won't work on nebulas or other zones however. That absolutely need to be made because if not, these systems will lose all their purpose: you will know where all wrecks with valuable loot placed, solutions to logical puzzles or way to bypass obstacles on your way.
6) Not have dockable non-vagrant bases. That is deep space.
There may be:
1) Solar spawn scripting, with FLHook support it is possible for all solars to spawn randomly: stars, planets, bases and wrecks in random places with random loot if it is wreck. If jump hole to the system will be generated second time, you will discover there is no wreck with juicy loot you remember from visiting the place first time.
2) Systems specially dedicated for blind jumping. Some uncharteds to be accesible via blind jump, but in some the most exploration-rewarding of them to restrict surveying.