Then on judgement day they say the greatest rapper's revived
Oh look who's here the greatest rapper's arrived!!
SuperLupe! He’s Here!
He might be referencing the last of the votes which stablizes the top nominees in their positions for awards i.e. the judgement of the fans. Some rap artist have that other artist are the greatest rapper. Such as rappers who tip their hat to the likes of Eminem. Lupe names some rappers who have been considered the greatest in future lines (not excluding himself of course).
Possibly a reference to the “end of the world” when on Judgement Day all the dead are resurrected & suddenly the “Greatest Rapper that Died” is now in the running for the “Greatest Rapper Alive” — part of the overall message that deciding who IS the “greatest” rapper is an exercise in futility.
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