"Some yes, some no. But many of the great stories remain. For example -- Batgirl. The Killing Joke still happened and she was Oracle. Now she will go through physical rehabilitation and become a more seasoned and nuanced character because she had these incredible and diverse experiences."
-- from DC Comics' "The New 52 and You" email sent to retailers, addressing whether the publisher's September relaunch will "undo events or continuity"