The irony is that the reunited League, tenuous as it is, is probably more stable than most of its neighbors.
Think about it. From a security standpoint the Lyrans are obviously kind of busy with their own Clan infestation problem (you do NOT weaken a border shared with Malvina Hazen), and the Capellans are pretty focused on the Federated Suns. The Magistracy is all but a Capellan puppet state, so see the previous. There's the Marians, but they're not making a lot of noise at this point in time. So other than the chaos at the Republic border, you're really not in bad shape overall- you have a watchful eye on the Wolves, of course, but that's less 'worry' and more 'trust but verify'.
But the threat to the League has usually been 'internal' rather than 'external'. Now, the League is, as always, a fractured mess, because if it wasn't we wouldn't recognize the place, right? Cool. Look around at the neighbors. Three of the four other Successor States have had major upheaval in their royal families over the last few years- the FedSuns has stabilized at least with Julian's return, one can safely say that's the plan- for as long as New Avalon is free, at least. The Lyrans have had a rough time, and stabilization is still 'iffy', if pretty predictable (let's be real, Alaric's claim wouldn't hold up in court, or with the average Lyran citizen anyway). The Kurita clan has been all but wiped out, down to a bastard's line- and even that is tenuous with no heir that we know of. One assassin's dart or unchewed pretzel ends that line completely at this point. That leaves the Capellans, and while there's no question who runs that show it's a cult of personality- if Daoshen dies, whatever the cause, there's a whole mess of a succession line waiting to happen there. That leaves the Republic, and whether the actual central government there is really in charge at this point or just claim to be from behind their wall while the other Prefectures do their thing on their own is debatable (and whether they'd listen if the wall DID come down at this point is hard to say too- after all, they won't be happy, one would think, to have been abandoned by Levin...)
So, the League has secure borders, by Battletech universe standards at least, a fairly strong government, a newly united military with some heft to it... when the dust settles, where we see chaos from most states the FWL may actually be not only returned, but resurgent and even dominant for the first time since the 3050s.
We'll have to wait and see, of course. But if pride truly does goeth before the fall, the League's already had plenty of falls to practice on at least.