Survivors may fight and dominate for resources, but its not a surety. Anyhow, a new power structure will be formed sooner or later which will be built upon reforms from the past.
In the present scenario 'The Venus project' talks about a new model with resource based economy, but the problem now is that a nation cannot change without changing the whole world as everything is connected now, US has dominance over a lot of country, Countries are free on paper but not free to make their own decisions. And after the US are Israel, UK, EU...
Revolutions are going around almost in every country now, but futile because the people in government services don't wan't to become a part of it, as they are enjoying the power and moreover money...