The real answer is he will continue the gutting of the administrative state. The direction we are going is corporatism. Absolution of federal agencies tasked with legally protecting people (education, health, environmental protection, labor protection, safety, finance regulation) and expanding the agencies that legally bind people (police, prisons).
It’s not likely that Trump would be going “full Hitler”. But the governors of Texas and Florida might.
It will never be able to do this because it is not capable of knowledge