I count 18 threads about the Canon 5D Mark III. I think that's a record for the rumours thread which indicates to me this camera will be the hottest item ever discussed on POTN.
I have no doubt once the thread is up and running in the camera section it will end up one of the most popular topics ever posted on the forum.
As for who the person will be to post it up? I'm predicting one of the mods. Perhaps Jon?