Who pulled Jor-El out of the past and tortured him into Mr. Oz?
What was Pandora's deal?
Who was Ignition's mysterious master?
This is the thread where we get to bring up old forgotten subplots and mysteries that never got resolved (and probably never will)
I'll start with the Pre-Crisis Supergirl and Flash who made it out of the ending of Convergence and have never been seen from again. Well, remember that picture of Earth-1985 from Doomsday Clock? What if they went there, which is why they're still alive?