Actually, Ducati has openly hinted that they are considering development of a larger displacement V-twin. Now, that doesn't mean it will be in production, they are just testing the waters to see if a bump in displacement could make a V-twin on par with a 1K four cylinder for racing. Some have claimed the Testastretta 999 has reached its maximum output and needs to be bigger before they can start pushing higher HP numbers. They wouldn't do anything unless a major rule change was made in SBK to allow engines that size, however.
Remember, they are working on a V-4 GP replica- the 990cc Desmosidici RR will be in production very shortly, and is already undergoing prototype testing as of many months ago. So it isn't likely they will start making V-4s, they are DEFINITELY going to start making them, and in a few years we may see them in more pedestrian Duc models than the 60 000 Euro RR. I think that is more likely than a 1200cc v-twin, but don't denounce the idea just yet.
Oh, and remember that this source is completely unreliable. Remember the 220hp VFR1200? Or the '06 Busa with over 200 hp? No? Well that's because they were BS that MCN claimed was on the way. You might as well go on to Raptors and Rockets for your 'future model' info.