WWE has been working on a new DVD for John Cena vs. The Rock, with the title expected to be "Greatest Rivalries." This has been a new idea and collection of DVD's which featured Bret vs. Shawn.
The DVD is expected to be called "Once in a Lifetime" which is directly from their build and match from WrestleMania 28. The details of the DVD are still to be determined, but expect all of the build from the previous year, backstage information, exclusive interviews from celebrities, and the topping of the actual match from WrestleMania.
Also, the one hour documentary that aired prior to Raw will be included as well, highlighting the life and careers of both men. There is no release date for the DVD yet.