I believe a truly amazing and epic relaunch of the cinematic Superman franchise could be achieved by mixing the three most significant origin tales of the character ever published. Namely: The Man of Steel (John Byrne), Superman: Birthright (Mark Waid), and Superman: Secret Origin (Geoff Johns).

plus a few others, such as:

Firestorm (Rusch), Post-Crisis Captain Atom, Black Lightning, Geo-Force, Doctor Light (#2), Mister Miracle, Big Barda, Icon.