Every time the JSA returns, its faced with the same problem. The team is closely associated with WWII but a lot of the members are still young and active in the present.
Since there's no way DC will completely move on from the originals, I created a list to understand which characters could conceivably still be active and which characters could use a revamp to better explain their status.
Note: I tried to ignore most of the more convoluted explanations. The idea is to figure out how the JSA could still be around and yet be more accessible.
Originals who can still be alive due to powers or other established circunstances.
- Alan Scott (Starheart reduces aging)
- Doctor Fate - Kent (magic reduces aging)
- Hawkman - reincarnated
- Hawkwoman/Hawkgirl - reincarnated
- Jay Garrick (speed force reduces aging)
- Johnny Thunder (merged with Thunderbolt)
- S.T.R.I.P.E. (time traveller from the 50s)
- Sandman II (powers reduce aging)
- Wildcat (granted 9 lives by Zatara)
Characters who should be dead or retired due to old age:
- Atom (Al Pratt)
- Black Canary I (Dinah Drake Lance)
- Doctor Mid-Nite (Charles McNider)
- Hour Man (Rex Tyler)
- Johnny Quick
- Liberty Belle (Libby Lawrence)
- Red Tornado (Ma Hunkel)
- Starman (Ted Knight)
- Sandman (Wesley Dodds)
Children of originals who should be older:
- Black Canary II (Dinah Laurel Lance)
- Damage (son of Al Pratt)
- Hour Man (Rick Tyler)
- Jack Knight (retired from superheroics)
- Jesse Quick (Jesse Chambers)
Children or grandchildren of originals who could still be young:
- Cyclone: Hunkel's granddaughter
- Jade and Obsidian: parents nearly immortals (thank Bendis for Thorn LOL)
- Tomcat: Ted Grant still active
Legacies not related by blood (less affected by the WWII connection)
- Android Hour Man (Matthew Tyler)
- Atom Smasher (Albert Rothstein)
- Doctor Fate (Khalid Nassour)
- Doctor Mid-Nite (Pieter Cross)
- Doctor Midnight (Beth Chapel)
- Jakeem Thunder
- Mr Terrific (Michael Holt)
- Stargirl (Courtney)
- Wildcat II (Yolanda Montez)
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I have to admit I was really surprised at how many originals can still be active simply due to their powers.
The biggest problems seem to be the following characters:
- Black Canary II (she can't be the daughter of the original and still be in her 30s).
- Jesse Quick and Hour Man II would both be a lot older.
- Jack Knight (but he is already retired, so maybe his age doesn't matter anymore)
- Damage (could become Al Pratt's grandkid instead of son).
Also, I find it funny how Bendis inadvertedly fixed Jade and Obsidian's problems by making Rose/Thorn immortal