Time is on the side of GNA now. With vast majority of the population now living under GNA, and some oil revenue coming in, a few things will happen:
1. GNA will expand its army
2. Turkish forces and other reinforcements will increase
3. Airbases and naval ports will become operational
Meanwhile, on the other side:
1. Lack of population and revenue will mean more money has to be thrown in by the significantly weakened UAE economy
2. Mercs, conscript Egyptians, cannon fodder from other parts of Africa, will not find a long war of attrition meaningful.
3. Egyptian army, already present on the ground, will begin to tire and lose moral
4. Internal rebellion in Benghazi becomes a real possibility. The LNA will increasingly find they are surrounded by a hostile population.
Slowly but surely, GNA will win if the fundamentals stay as they are.