Imagine young Dora Grayson's husband (and trapeze partner) is murdered by Boss Zucco. The Batman brings the gangster to justice, but in the process gains a female partner and enduring love interest.
(1) I haven't read Seduction of the Innocent, but I'm guessing that Werthem would not have approved of Dora and Bruce living together without benefit of marriage. If they got hitched, no problem.
Underage girl and older man? Considering the public uproar on Jerry Lee Lewis, well - it would have been ugly and I wonder if comics would be here today.
Whoa! Look again, guys! I clearly said that Dora was of marrying age. After all, I said her
husband was murdered. And I certainly didn't mean to suggest that Bruce and Dora would co-habitate out-of-wedlock.
(2) Having Jay Garrick, Alan Scott et al resume their previous roles probably would've worked out fine, if the editors had chosen to go that way. Readers of the late '50s and early '60s were largely unaware of the Justice Society heroes, so the old Flash and Green Lantern would've seemed like new characters to them. . . . These characters, like SA Superman and Batman, could not grow perceptibly older.
Hmmm. I agree that few readers would have remembered Jay in 1956. Yet Barry's origin references Jay (albeit as a fictional character). Schwartz et al could have easily ignored Jay, and introduced Barry as a totally new character without any connection to the Golden Age. That's what they did with GL, the Atom, and Hawkman (except for the Carter Hall identity). Maybe they realized that most readers hadn't heard of the originals.
. . .the Golden Agers plus new guys would likely have developed - but with more a Sci-Fi bent. I don't think it would have worked as well as it did in reality. It's not so much the fans - but the creators. Would Captain America have worked so well, or Namor for that matter - if Kirby/Lee hadn't given them new spins?
The successful Silver Age "updates" (the Flash, GL, the Atom, and Hawkman) did have more sci-fi in them. So it might have been possible for DC to revive the originals--with updates: Alan recruited by the Guardians? Al invents size-and-weight controls? Carter and Sheira discover they are aliens from Thanagar? New costumes all around? It's interesting to imagine, but all in all, it was probably easier to create new characters.
(3) Assuming that the JSA heroes instead got Silver Age counterparts, they would probably have had the same powers but with new origins, secret identities, and costumes. And fewer capes. Capes were not as prevalent in the Silver Age.
It's somewhat disappointing that Schwartz and company stopped "updating" the Golden Agers once the JSA returned to action. We might have had Earth-One versions of Hourman, Black Canary, Starman, even Red Tornado (a woman, like the original, but serious) in the Justice League. And you're probably right about the capes, even though I like them.
Well, they did update the older heroes to a marked degree. Dr. Mid-Nite got the "Super Tuber?!?"
I think you mean cyrotuber. "Super Tuber" sounds like a genetically enhanced potato
. But that's not much sillier than cyrotuber. Or Sandman's gun that could manufacture concrete and glass.