Brickset is reporting there are four new polybag sets in the LEGO system. Two of the bags are related to Pharaoh's Quest and include minifigures, while the Pirates of the Caribbean sets are a brick built mini-ship and the promotional Captain Jack included with pre-orders of the video game.
The package art doesn't give us any additional clues at to what that Captain Jack minifigure is supposed to be. There are 'motion lines' around the hands, and it seems to be walking in the pic (a mechanized Jack?!) I'm still going to stick to my guns and say it's supposed to be a voodoo doll.
You can read the full article and see all the polybag pics at Brickset.