Brought up in the Radar page: "Epilogue", which was meant to be the end of the DCAU, consists of Amanda Waller confessing to Terry the secrets about his origin. In other words, the Fat Lady is singing.
In "Epilogue", there is another reason why The Phantasm was unable to kill Terry's parents. While it is true that taking a live wouldn't honor the memory and spirit of Batman, there is also the point that Andrea Beaumont couldn't bring herself to harm Bruce Wayne's son, not even psychologically. She loved him that much.
During Flash's battle with Brainthor in "Divided We Fall", we see the former literally circling the Earth in a matter of seconds for a running start. This requires traveling at a fraction of the speed of light. At that speed, the kinetic energy would flatten any object in his path. Raindrops. Insects. Birds. Buildings. People. It's the horizontal version of Not the Fall That Kills You. And Flash has milliseconds to react and veer off should he spot something—or someone—in his way.
This goes back to Fridge Brilliance in terms of why the first strike at Brainthor took ten seconds, whereas the Flash could later strike him four times in a couple of seconds: he needed time to determine the safest path around the world.
Lex Luthor defeated Darkseid by showing him the Anti-Life Equation. This means that if Darkseid ever comes back or his servants bring him back from the dead, the Timmverse is screwed.
When Lex Luthor hijacks the Watchtower's Binary Fusion Cannon, and targets CADMUS. The first reaction shots are of a simple, bright white light. To anyone nearby, it would have looked liked the predicted effect of a nuclear attack. Judging from the sheer devastation from the clean up, casualties are certain, and their last thoughts were about the horror of nuclear weapons. America's Greatest Fear come true.
More like a Fridge Tear Jerker, but reflect on this: It's probably not long after the finale that Tim Drake is kidnapped by the Joker and Harley Quin. That incident is what leads to Bruce slowly cutting himself off from all contact until we see him old and alone in "Rebirth". Look back at how many allies Bruce had to have gained through the League, especially how close he was to Clark and Diana; realize that he'll eventually be shutting THEM out as well.Sorta sours that ending, doesn't it?