Now it is going to be come available again. Establishing new routes or reestablishing old routes is going to take a while even if 1) the SL (revised) agrees not to extract retribution and fines from the MMM for the effects of the Lagoons and 2) the GA provides an armed incentive for League and other Systems from messing with the MMM.
The question about defalt on contracts and penalties wasn't mentioned in what we know of the terms of surrender. Major pain in the rear and pocket books. Along with the companies (all sorts of companies) that have failed because they couldn't get materials/couldn't deliver goods/couldn't even get orders/ couldn't get products ordered, you have to rebuild the logistics chains of commerce.
That will happen but it won't be an exact match for what was there. At the very least, the renegotiation of "terms" by now independnt systems (and all those businesses and manufactures etc who are no longer being crushed and explointed by the Protectorate System and the preditory opearations of so many Transtellars, will also shift things. Markets will shift because the pricing structures will. It may be that the buyers of thing from the Verge will ultimatly pay the same prices but who gets both the shipping fees and the profits will change.
The MMM is in the best position- probably- to take advantage of all this depending on how badly they have been hurn and are able to get relief and forbeareance for the time when they were forced to sit idle plus have all those failiure to deliver penalties inflicted in them. So we wait for RFC to let us know how this is shaking out.
