This leaked sketch was found on a Ducati forum where the forum member claims he received it from the dealer that sold him his Streetfighter. Motorcycle.com published an article last week that shows some spy shots of the new cruiser on the road along with some other information on the potential new bike from Ducati.
See the official statement from Ducati after the jump.
If you ever wanted to learn how to draw a motorcycle with a pencil and some paper then hit the jump and watch the demonstration video to see this