The Dark Knight's Long Halloween?

The Dark Knight viral website WhySoSerious.com has been updated with a jack-o-lantern. The pumpkin has a huge grin, which appears to be the bat symbol. Could there be a Dark Knight treat in store for us on Halloween? Or is this just holiday window dressing?Updated: The same pumpkin image appeas on the cover of the popular Jeph Loeb/Tim Sale graphic novel The Long Halloween, which was one of the books which was used as inspiration for The Dark Knight. It is also a personal favorite of current Batman star Christian Bale. The Long Halloween also featured the origin of Two-Face, which is likely mirrored in the new Christopher Nolan film. Click on the image to the right to enlarge.