Julien Risse, who works at Ubisoft's Paris studio, lists the unannounced sequel on his LinkedIn profile alongside earlier titles Watch Dogs and its DLC Bad Blood, but doesn't offer any hints as to when we may see it.
http://www.videogamer.com/ps4/watch_dogs/news/watch_dogs_2_appears_on_ubisoft_employees_cv.html
not much of a surprise..
but that poor guy will get some heat after this...