Then you are not speaking of the same reign of Christ, that Scripture is prophesying.
And when the thousand years are expired, Satan shall be loosed out of his prison.
His eternal reign and everlasting kingdom begun at His resurrection, will never end. His physical reign on earth will expire, before the earth itself passes away.
LOL. You are talking in riddles. If His reign is everlasting then it cannot end. Where in Rev 20 does it show Jesus reigning on earth?