Fr. Pfeiffer used to give catechism lessons on the Second Coming and he said that it is believed that the remaking of the world by fire, and the descent of the Kingdom of Heaven down onto the re-made earth will occur approximately 40-45 days after the death of the Antichrist.
Do you remember if Fr. Pfeiffer meant that as is said, "there will be a new Heaven and a new Earth"? Apocalypse 21
Yes, that is what he meant. That the earth will be destroyed by God by fire, in order to purify it for His presence, because New Jerusalem will dwell on earth and He with us.
So, a short period of peace (40-45 days) after He strikes antichrist dead and the General Judgment takes place, and then he melts all the earth, dissolving every atom.