Looks like Sunday, July 14th for the return.
And I missed this in december, apparently the same day the Glen Mazzaro stuff came out with Walking Dead, but the scuttlebutt is that AMC ****ed over Vince Gillian, too. From Shawn Ryan's twitter on 12/21:
Common knowledge that AMC cut Breaking Bad shorter than it should have been. Now you have creative differences w/ biggest hit's savior?
WTF is up with the suits at that network...