it says that the first heaven and earth passes away.. so I tend to think that means God will totally wipe this world out and make a new earth and place the Heavenly Jeruselum on it.
Revelation 21
21 Now I saw a new heaven and a new earth, for the first heaven and the first earth had passed away. Also there was no more sea. [SUP]2 [/SUP]Then I, John,[SUP][
a][/SUP] saw the holy city, New Jerusalem, coming down out of heaven from God, prepared as a bride adorned for her husband. [SUP]3 [/SUP]And I heard a loud voice from heaven saying, “Behold, the tabernacle of God
is with men, and He will dwell with them, and they shall be His people. God Himself will be with them
and be their God. [SUP]4 [/SUP]And God will wipe away every tear from their eyes; there shall be no more death, nor sorrow, nor crying. There shall be no more pain, for the former things have passed away.”
[SUP]5 [/SUP]Then He who sat on the throne said, “Behold, I make all things new.