The cover art for Ice and Fire, the fourth book in the revamped, twenty-volume Chung Kuo series, has appeared online. As with the first three books, the cover art is by Larry Rostant.
And with the title (and a slightly different image; it is unclear which is the final version at the moment):
The third volume in the series, The Middle Kingdom, is currently scheduled for release (after a slight delay) on 1 October 2012. Ice and Fire will follow on 1 December. The fifth book, The Art of War, has also been provisionally scheduled for 1 March 2013.