I think I read a magazine blurb a couple of months ago that the F4 will be replaced for the 2009 model year, so I would assume the new bike to be displayed in September 2008. We wil have to see how Tamburini follows up.
I doubt it will be a 999 flop. Tamburini is in control of the styling after all.
I will be willing to bet that the new style of the new MV will not deviate too far from the original style. It will probably be an evolution in style sort of how the new Hayabusa still has a resemblence to the old Busa even though its a new design.
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Don't be a poser, and ride it like you mean it!!!