and thus now Im in doubt if I can even continue the Salvation storyline.
You almost certainly can. People who had not previously participated in the storyline were still able to do the deliveries that weekend and get on Salvation's mailing list. If you've previously done things for him, most likely you'll get his next message as normal, and even if not you can probably jump in and do whatever the next thing is once you see it on the forum or wherever.
Yes, I cannot understand the purpose of doing this. I think the only way in game of get the access to the permit is people who have access to the system, manipulate the BGS in order to make a expansion of de PA to a nearby system. The problem is that all nearby system has the presence of the
Close Encounters Corps.
Indeed. If we assume that CEC is responsible for closing off Peregrina in the first place, then it's fair to assume that they will oppose any attempt to expand the PA back out. At least until they lose interest in the project, whenever that might be. They're a Russian player group, so maybe right after New Years - the week from Jan 1 - 6 is holiday parties time over there, so perhaps they'll be distracted by real life? At any rate, it's a low population system, so a coordinated effort could generate very large influence swings in a short time. You'd have to find a way to jump the other two factions without getting stuck in a conflict, of course.