In a tweet from the official Watch Dogs twitter account, it seems Ubisoft is teasing a new setting for Watch Dogs.
They also tweeted the text:
Our data indicates surveillance has become more prominent in high-crime areasIs this hinting at possible DLC in a new city? Or maybe for the next game? The message is pretty cryptic and doesn't answer much. Watch Dogs was set in Chicago which is a city much bigger than Camden, though it still could be a possible setting for the next game. It also follows the themes in Watch Dogs of high crime urban areas.
Watch Dogs was released on 27 May around two months ago which seems like a fairly short time to be talking about a sequel. Ubisoft are a company of thousands and move fast when it comes to their next game so perhaps we'll find out more in the coming days.