Sure, we can just have a New 52 and Rebith Key eventually. New 52 Green Lantern continuity is a bit weird. An interview confirms that some events repeat in the New 52 Timeline such as the Blackest Night and Brightest Day. They really stopped caring about a solid continuity.
Harras, Berganza: DCnU Will Keep Much of DC History Intact
Harras: We're taking this September event very seriously. We looked at what was important to our characters, what we thought were pivotal moments in their lives and could actually make more drama going forward. What really went on was a very comprehensive look at their histories, and Eddie and his team compiled a timeline for our history going forward, and everything that we thought was integral and important was part of that.
Berganza: It was all about the character. It wasn't so much, "what did this event do?" but "what did it do to the individuals?" If we got more story out of it, then definitely, that's what we were definitely going for. For instance, with Killing Joke, that event in the Bat-family is really crucial to what we're doing.
Nrama: How should fans regard favorite or even unfavorite past stories? Are they just going to find out along the way if they "counted" or not?
Berganza: You're going to have to read and see what's coming up.
Nrama: You both know DC has long-time fans where continuity and canon are a very important part of their reading experience. Can you talk about the regard for "continuity" within the editorial ranks of DC?
Berganza: We respect continuity, but I think even the fans will admit that once you get too mired in continuity, you start getting away from what's essential, which is character. If you look at what Geoff Johns has done with each time he relaunches a book, you see that it becomes very focused on character, and you don't get into questions about whether the Green Lantern fought this menace or this other menace, or where is Evil Star or the Starlings. You get more into the core of the character. And I think people have reacted very well to that. I think that's a fine model, where it doesn't get mired in continuity.