Revelation 22:3-5
“And there shall be no more curse: but the throne of God and of the Lamb shall be in it; and his servants shall serve him:
(4) And they shall see his face; and his name shall be in their foreheads.
(5) And there shall be no night there; and they need no candle, neither light of the sun; for the Lord God giveth them light: and they shall reign for ever and ever."
How far will degeneration go? I think God will only let degeneration go to a point (in humans) before he returns to earth to restore it.