No, Not The Millennium Falcon

Treasure hunters in the Baltic Sea have found something that, from the sonar image, looks like what would have happened if the Millennium Falcon from Star Wars had splashed down (hard) into the ocean. It is in 275 feet of water.  My guess: it's an Ice Age settlement.  During the last Ice Age, ocean levels were more than 300 feet below their current level.  As the Ice Ace ends, humans make the move from paleolithic to neolithic culture, and the first significant settlements come into existence.  Is this round object perhaps a neolithic settlement?  What is perceived as a track of the "ship" might be roads leading to it.