Mike Bise, the man who exposed the "Infinite Crisis" HC changes on the DC boards is continuing his challenge with the thread, "There is NO Master Plan At DC," exploring the popular belief that despite the spin, universe continuity is not being planned but being made up as it goes along.
He cites evidence, as well as the significant changes made to "Infinite Crisis" HC, Walt Simonson's version of how Kendra (Hawkgirl) was working in a museum for a year at the beginning of the "One Year Later," but six months into "52" was still working at a library and the state of (Hawkman) Carter...
"I don't just mean that Kendra didn't know where Carter was; I mean that nobody knew where Carter was. It had not been decided at that point what had happened to Carter other than that he had dropped out of the comic. As a result, there was a certain constraint on saying much about Carter. What could you say other than--Carter? Oh, yeah. He's missing."
And since Johns is going to put Hawkman in the new "JSA" comic, that has to be set up too, even though no one at where Hawkman is, currently..
Bise also cites Stuart Moore on "Firestorm" stating that he tied an issue into "52" by leaving a speech balloon unfilled in, and letting Steve Wacker add the dialogue. Which doesn't exactly sound like the greatest big crossover continuity tie in, in the world, I have to say.
Still, it's more than in "Civil War: X-Men."