A healthy forest comes from strict conservation laws, confiscation, expropriation, etc. When land is secured, what to plant is a technical detail.

Achieving a good approximation of pristine natural forests might have a lower priority than the variable needs to increase rare plants, provide an habitat for rare animals, make the forest robust against climate and geological hazards, dealing with people with friendly (e.g. edible fruit) or hostile (e.g. thick vegetation to discourage secret hemp cultivation) features, etc.