No, actually things end up wonderfully blessed on earth after the relatively short but utterly horrific seven years of Tribulation. Christ the King of Kings rules for 1000 years and after that, a new heaven and a new earth and the New Jerusalem forever.
But the Earth as we know will end horribly.
The Bible says 3½ years, very clearly. Would anything be alive on earth even four years after a global nuclear war, much less seven? Remember that “those days shall be shortened”.