I suppose Morek could get tired/bored of Libero in a few months, but I'm not interested in waiting around to find out. Maybe I'll go south, they're having Fun down there and they need nobles!
It would be hilarious if someone attacked Morek from behind. Unlikely, but hilarious.
Morek is bounded to the east by astroist Consanctum and to south by rogue provinces, and a little bit past those by Solaria, which is also astroist in faith. I'm guessing there's zero chance of any intervention. After the coup-de-grace, the north will be a homogeneous block of hand-holders, sadly. Anyone that has acquired an itch for battle over the past few months will be riding off into the sunset. It's not clear to me where the next big war will happen, though. Or even if.
I wouldn't go that far. We would have probably been able to take a little territory if we had a few favourable engagements, but Libero pretty much matched Summerdale in military strength. It was Morek that tipped the balance beyond any doubt.
Even after Morek, the war was reasonably level, in my opinion. Morek and Libero have never fielded more than 25k mobile strength together, and Summerdale has had almost 20k strength together at one time. Essentially, the war against Morek was an even fight, but Amalie basically squandered it by tactics reminiscent of the Russians at Stalingrad... only without the key ingredient of overwhelming numerical superiority.
Had Morek not joined, then you're talking 15k strength in Libero versus 20k in Summerdale. And young nobles have a lot more growth potential in their unit sizes than veterans. I'm inclined to think that Revo would have been right. But then Morek joined, and Charlotte died. And thus history was rewitten from crumpets being eaten to strumpets being beaten.