According to Bleeding Cool, every single DC Universe comic will restart their numbering with #1 beginning in September 2011. Along with the changes in numbering, some characters will be changed while others will no longer exist.
Everything will be NEW – from books and creators to teams and characters – The DC Universe will essentially be remade and there are no plans to change it back. In order to continue working on their titles, DC creators were asked to sign restrictive Non Disclosure Agreements so that they would not leak any news about the changes being made.
On June 11th 2011, Geoff Johns and Jim Lee are scheduled to make major DC Comics announcements. Judging by the above news, this change is a part of what they’ll be talking about. We can only sit back and wait.