Ballistic Publishing has just put up some page previews to the upcoming Massive Black Volume 2.
It's 208 pages and comes in the standard, hardcover folio and special editions. Yes, the cover is white.
They are taking pre-orders now and there are also other early bird goodies. I'm guessing the shipping will be in November 2012.
More details at: http://www.ballisticpublishing.com/books/massiveblack_2
Also check out the first volume if you haven't.