If I were a hero, I'd be Martin Luther (Part 4162)....

 Superhero Anydays

This is by Howard Porter, a great JLA artist, and it shows 12 out of the 16 members of the original JLA members,  They're all from different points points in time though. 

Superman, Black Canary, Green Lantern, Elongated Man, Hawkman, Martian Manhunter, Firestorm

The Flash, Aquaman, Wonder Woman, Zatanna and Green Arrow.

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Well this is obviously a sequel I would absolutely see!  Probably twice. 

POLT