Well they can leave Sirius anyway, just need to make a bridge through a few systems. Much like how the Houses etc expanded. After all it's not as if the galaxy specifically makes set numbers of systems per sector. A sector that was defined by humans especially.
Sirius is simple a small piece of a giant galaxy picture. The borders defined by ourselves. The actual borders being limitless.
Jump drives were too big to fit in smaller ships than the Osiris 15 years ago in our storyline. By now I'd say they might've at least produced more ships with them in it or simply the drives themselves, instead of simply a prototype.
I'd say those with the right connections or the right credit numbers could get ahold of one for their ship in RP.
The Liberty Military would also see the value of them for their carriers. A single battleship is vulnerable even in RP but a carrier is essentially a mobile base. Far better to jump one of those into enemy territory and send out attack squads than jump a battleship in and have the roll the lumbering beast into their forces.
Slight diverge from the original topic but Jump drives on select ships would be a brilliant addition and increase RP oppertunities by a hell of a lot.
