Limbo, along with most the JSA-centric characters.
Only Hawkman, Hawkgirl, Dr. Fate, and Mr. Terrific are currently active in the DCU, the rest are all waiting for Doomsday Clock to sort out their current status.
That said, Citizen Steel just popped back up as a corpse in Heroes in Crisis
Speaking of Green Lantern and Flash.....
hal_and_barry_by_drakeb3005-dcqw21p.jpg
At last check,* Hal Jordan/Barry Allen lead with 54 votes
* Kyle Rayner/Wally West are next at 35 votes
* John Stewart/Wally West come in third with 12 votes
Alan & Jay definitely need more support!
Hal and Barry
Hal Jordan/Barry Allen for me.
"So you've come to the end now alive but dead inside."
you're probably right, but right now, i can think of fewer adventures for hal and barry when compared to the denny o'niels gl/ga series.
when i think of animated movies, its more like the justice league thing rather than just gl and flash having their own buddy adventure.