art by Leinil Yu.
In 1998, Grant Morrison, Mark Millar, Mark Waid and Tom Peyer pitched a revamp of Superman. Their proposal (entitled "Superman 2000") was turned down by DC editorial who swore those writers will never be allowed to work on the character.
Years later, those ideas are worked into All Star Superman, Superman: Birthright, 52 and...Spider-man?! Read an analysis of the Superman 2000 pitch here.