DP Review, and others I am sure, have just published an updated spec sheet for the forthcoming Fuji S5 Pro.
http://www.dpreview.com/news/0612/06120701fujis5pro.asp
This camera is of particular interest to underwater photographers as it is based on the Nikon D200 and should slot directly into existing D200 housings. The S5 will have different strengths than the D200, and is expected to offer excellent colour reproduction combined with exceptional dynamic range. It might also be expected to have better high ISO noise control than the D200.
This creates the interesting situation where an underwater photographer who already has a D200 can buy a S5 as a backup. As the cameras have different strengths the photographer could then choose the tool that they prefer for a particular dive. The high dynamic range of the S5 should make it better for wide angle shots containing the sun, and its high ISO noise reduction make it better for low light wrecks and filter photography. The higher resolution of the D200 would probably be better for macro shooting.
We'll learn more when the S5 is actually available next year.
Alex