As already noted, the heavens and earth pass away. Now God creates new heavens and a new earth. In each case, where both are mentioned, the new heavens are mentioned first. It is followed with the new earth or new world. God makes all things new.
Very little information is given about the new earth. Some believe the old earth will be renewed or recreated. Others believe it will be an entirely new planet.
Rev 21:1-AND THERE WAS NO (longer any) MORE SEA. The word "water" was not used, but "sea." In Rev 13:1, the word "sea" seems to mean "the nations of the world in unrest, turmoil, and instability." In Rev 21:1, there is no more sea.A "river" and "water" are spoken of in Revelation 22:1 Revelation 22:2
Rev 21:24-AND THE NATIONS: It is noted that the new earth has nations. OF THEM WHICH ARE SAVED: These nations are saved. This is in harmony with 2 Pe 3:13; as it is written, WHEREIN DWELLETH RIGHTEOUSNESS. These nations SHALL WALK IN THE LIGHT OF IT (or walk by its light). These saved nations shall walk by the light of New Jerusalem. This suggests that spiritually they are walking by its light. New Jerusalem has no need of the sun or the moon. Such a statement is not made regarding the new earth. Nevertheless, it is possible that New Jerusalem may give light to the new earth.
AND THE KINGS OF THE EARTH: Evidently, the new earth will have kings.The kings of the earth DO (or will) BRING THEIR GLORY AND HONOR (or splendor) INTO IT. The kings on the new earth will have glory and honor.