All people are worth it to Yahweh God to save, that does not mean we are worthy, with things we do, but in some way God sees what is of value with what we were meant for with our creation. But God gives us opportunities, and if we never take those to respond, God cuts us off with no more opportunity toward salvation, as with God's justice there will be consequences to the sin we still face, alternate universes will not have any effectiveness for this, and it all is involved with this universe where we make relevant choices before we enter to what we face in eternity, and realms of God's sole existence, of Heaven, and of Hell, outside of it.
No, there is the renewed world in place of the one that flees away, Revelation 20:11, and the city of Heaven, the "new Jerusalem", is on the great mountain, a heavenly Zion, beyond all measurable things on this earth by far, that from its peak to its base reaches from the heaven to the earth. It will not correspond to what could ever be on this earth, the way it is, and certainly with curse that is on it (Genesis 3).