Hmm. Dull, to be honest. Crossroads of Twlight and Knife of Dreams' UK hardcovers had similar art with just a different colour (red and jade-green), whilst The Gathering Storm had the same layout but a threatening use of clouds in the background. And you'd think they could change the cover quote for the first time in eight or nine books, just for variety's sake. Still, this could also be a mock-up and might not represent the final version (though I suspect it will).
Brandon Sanderson also read out the first paragraph from the book at JordanCon:
Interesting, as this is the first time that the 'wind' has risen on another continent, in this case around the city-fortress of Imfaral in the far north of the Seanchan continent, near the Lesser Blight. Imfaral is the second city of the Seanchan Empire (although only the sixth most populous) and the base of operations for Luthair Paendrag during his invasion of Seanchan's northern landmass before taking Seandar later in his war. Imfaral is the location of the titular Towers of Midnight, a prison complex consisting of thirteen towers where political prisoners are interrogated and executed. It appears that the actual Towers will be referenced in the book, although fans have also speculated that the title acts as a reference to the Tower of Ghenjei and the Black Tower, both of which are expected to figure prominently in the novel. It's also possibly as nod to Tolkien, as Towers of Midnight is the middle volume of its own trilogy, like The Two Towers.
"The Wheel of Time turns, and Ages come and pass, leaving memories that become legend. Legend fades to myth, and even myth is long forgotten when the Age that gave it birth comes again. In one Age, called the Third Age by some, an Age yet to come, an Age long past, a wind rose around the misty peaks of Imfaral. The wind was not the beginning. There are neither beginnings nor endings to the turning of the Wheel of Time. But it was a beginning."
The book is currently expected to be published in November 2010, apparently in both the UK and USA.