Support docs for Jelly Bean on the Samsung Galaxy S III briefly showed up in a .pdf over at Verizon, but were then taken down. This potentially means we will see the update very soon for the SGS3. There was no corroboration for this other than some screen-shots that Droid-Life managed to snap before they replaced the .pdf with an older one.
We will keep a close watch on this to let you guys know if anything changes, but the signs point to a happy Jelly Bean Christmas for Verizon SGS3 owners.
Source: Droid-Life