Today Ubisoft announced that The Crew will be delayed further than the "early 2014" that was originally mentioned, the game is now set to release in the new fiscal '2014-2015' year which starts April 1st, 2014.
via http://uk.ign.com/articles/2013/10/15/watch-dogs-the-crew-delayed-until-at-least-april-2014
Musings around town seem to speak of July - September.