Originally Posted by
Digifiend
Honestly, the World War II lineup is obvious. Same as post-Crisis, except that now Wonder Woman was there (as they did re-establish that she's been active since World War II). So the rest of the roster would be Spectre, Doctor Fate, Flash, Green Lantern, Wildcat, Sandman, Hawkman, Hawkgirl, Atom, Hourman, Doctor Mid-Nite.
The only one that's a problem is Black Canary. Dinah Laurel Lance, the current one, is supposed to be the daughter of the World War II one, Dinah Drake Lance. That's no longer possible (current Dinah is supposed to be in her 30s, but that would mean her Mom would have to be over 60 when she was born). They'd need to either explain that Dinah Drake was actually current Dinah's grandmother, explain that current Dinah got time displaced and actually WAS the golden age version (that's how they're explaining Green Arrow and Speedy on the Seven Soldiers of Victory, in the Stargirl one-shot), or just remove her from the classic JSA, which would have the side effect of removing current Dinah's motivation for joining the 90s team.