Systems in freelancer are to my knowledge limited in physical size to 1000x1000x1000k this means you only got 1,000,000,000k3
space to operate within. Now considering hattens size is around earths size, it needs to be 37k wide, and the sun in that systems needs to be around 800k wide..... That means we cant wven scale things up.
Even doubling the size of planets and suns would kill off systems like newcastle due to their sheer initial size.
FL is practically impossible to scale up due to the limitations of the engine itself.
The best we CAN do is creating better starspheres to make things look more realistic. And add small planets or clouds close to the end of the map to create some weird kinda fweling that something is out there. But adding stuff means more stuff for our pc's and server to keep track off, and as a small private gaming server we are also limited by our own hardware and its compability with the outdated software this game is based upon