Screwed by the Network: The early-'90s series, because DC editorial believed that no one wanted to read about senior citizen superheroes. David Goyer and Geoff Johns later proved them wrong.
What Could Have Been: Magog's role as the JSA "All-Stars" trainer/field leader was originally going to be Hawkman. It's not hard to see the parallels or the massive character shift he undertook.
"The Justice Society Returns!" was an event used to bring attention to the revived series using new #1s of old comics (such as All-Star Comics and Adventure Comics). These were also purportedly used as an audition piece to see who would take over as David Goyer's co-writer after James Robinson left. Geoff Johns eventually won out, but some of the others included Tom Peyer, Mark Waid, Ron Marz, Tony Bedard and Chuck Dixon.