The third trailer for "The Dark Knight Rises" showed some fresh shots of Bane and Catwoman in action. It also gave an extensive look on Joseph Gordon Levitt's character John Blake but without really revealing anything essential. This gave rise to a new wave of speculation about John Blake replacing Bruce Wayne as Batman when the billionaire is heavily injured in a fight with Bane.
A hidden frame in the trailer which can be seen for less than a second may support those theories. It can be seen by viewing the trailer frame by frame at approximately one minute and twenty-six seconds. The image is a close-up shot of Batman in what appears to be some kind of a tunnel with a ghastly greenish light. It is hard to decide whether the man wearing the mask is Christian Bale or someone else but just the fact that the image is seen in a "hidden frame" is enough to raise some new questions and speculations.
And here is the image itself: