Re: DC's New 52: Reviews and Discussion (Spoilers welcolme and likely)
It confirmed it. Though it happened differently in the New 52 and was known as literally "Doomsday". The Little Man altered the present day to remind of them/recreate that day is how I took it. "The Death of Superman" in the five year time line took place in year two I believe lol. I still don't understand how they think the five year timeline isn't a constraint on what stories they can tell. Unless one of the purposes of the New 52 is for stories to focus in just that time period. Anyway...it happened.
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Ignoring the The Last Stand since 2011.