So at WDW we had the World Presidents Meeting, and a lot of questions were asked (more than once!) to the Ducati staff (Gabriele Del Torcio and Claudio Domenicali) about the new bikes; could we have some info, why no previews, what was it, etc! With all the questions, Claudio basically slipped up and said that the new bike will be a smaller version of an existing bike.
As suggested before, my money is on the Multistrada 848 rather than a 4V Hypermotard.
Some of the spy pics can be seen here: http://blog.motorcycle.com/tag/hypermotard/