There's the age of peace, Our Lady's triumph, in the coming age. Then antichrist rises. Then antichrist is defeated. Then the final age of peace, where Christ is finally King and the Jєωs convert. Then the end of the world.
This final age of peace is often referred to (incorrectly/heretically) as "millenialsim" by Protestants, who think that Christ will reign for 1,000 years after antichrist. The Church has said that this number of years is symbolic and not a literal 1,000 years. But the idea of an age of peace, post-antichrist, is a fact.