http://www.geocities.com/TheTropics/1185/jlegion.html
To a Superman Prime bio.
700th century AD when a haggard and haunted figure descended out of the skies above the planet Earth. Superman Prime, Kal-El of Krypton, the original Superman had returned to his adopted home. He had been places and dimensions that few had even knew of and even fewer understood. He had wrestled with gods and demons. He had overturned hell and fought his way past the gates of Heaven looking for the soul of beloved Lois who due to his immortality he could never join in the afterlife
The Superman Prime that appeared out of the sun in the year 85,271 is certainly the post powerful member of the Superman Dynasty ever seen and it is quite conceivable that he is now a New God despite his returned humanity. It should be also noted that Superman Prime is currently in possession of the last of the Green Lantern power rings
Says nothing about a Sword. Pre-Crisis had a sword
It came to pass that, in the course of a great battle for Truth and Justice, man and sword finally came together. For the first time the sword allowed itself to be grasped by the hand of a man. Holding it, Superman found himself expanding, spreading across the winds of the universe, the whole history of creation flooding his mind. His consciousness expanded, he was becoming an all-seeing, all knowing Protector. Then he let it go.
"You have done well, my son. You have earned your name. Your future is yours to make. Your greatness among living things is assured." This message was left in his head as the sword receded into the blackness of space once again. The sword remains out there. It waits until he who has earned it is ready to retrieve it and fulfill his ultimate destiny in Eternity (Superman Annual #10).