At this point, I don't think things can go BACK to what they were immediately before the new 52. I think the new 52 thinking was creeping into DC as early as Identity Crisis, and definitely by Infinite Criss/52/Countdown, etc.
I think a total reboot to a classic status quo is in order. With top flight talent (not left over Marvel guys Bob Harras bowls with) and the mantra to tell good stories. Get the creators excited about the concepts. Let them play in the sandbox with the classic toys, not the Jim Lee-upped new fangled versions no one cares about.