It looks like Antilles based HD 6990 card launch is pretty close as the first press shots have already leaked. There hasn't been any talk regarding the launch of the card and there were no hints that it may launch at Cebit, but you never know as AMD might have pushed the date a bit forward.
The press shot doesn't show much except for the dual slot cooler with a central fan that we already saw a while back. The press shot of the card also shows a single DVI and four mini DisplayPort outputs. As far as the recent rumours are concerned, the card should feature 3072 Stream processors, dual 256-bit memory interface and 4GB of GDDR5 memory.
The clocks are still a mystery and it will be quite interesting to see how low were they set in order to keep the TDP at normal values. We guess that there will be more info regarding the card at Cebit while the latest rumours claim the card should launch on March 8th.