Before the fall, Adam and Eve were immortal and therefore meant to live forever in physical bodies.
After the fall, physical death leads the souls to heaven, purgatory, or hell.
At the second coming, the souls destined for heaven are reunited with their resurrected, glorified bodies.
Would the glorified bodies be in the same state as the bodies Adam and Eve possessed before the fall?
Adam and Eve had free will and chose to sin. Because of their human nature, however, redemption was possible (as opposed to Satan whose redemption was not).
If the souls reunited with their glorified bodies merely restore them to the same state Adam and Eve were before the fall, and assuming free will continues to exist, can humans choose to sin again?
If the souls reunited with their glorified bodies advance them to a nature beyond Adam and Eve before the fall, then Adam and Eve were meant to evolve beyond their immortal bodies to something even better, whose process was interrupted by original sin?