Godzilla generally rises in response to nuclear power, particularly the use of nuclear weapons. He is empowered by them. He was created as a response to the bombings of Hiroshima and Nagasaki. His role tends to vary between being a villain, a hero, or an anti-hero. I think this movie he will be an anti-hero. He will be fighting other monsters that are wreaking havoc on his turf. Humanity will be the ants that get in the way.