I meant to communicate that Canon (unlike Nikon with their D3/D700 combo) will continue to "ration" features so that no one camera body (at any price) will have most/all of the features that I (we/Brianiac?) want.
That's to say it seems possible, now, to make a Canon 30Mp FF sensor with 7/8 fps that could also shoot 10/12 fps in a 1.3x crop mode (at 16/20 Mp). That would combine both the D4 and D4s for versatility and utility. Canon could make such a body in 7D size (internal battery at reduced fps) while offering an "industrial strength" vertical grip/battery booster/wireless link (as a package and/or accessory).
That would cover sports, BIF, fashion/magazine and general use pretty well. The extra cost of FF fab could surely be covered by the increased sales volume. Presently, to cover all these bases I maintain an 4 body inventory (D3, 5D MkII, 1DsMkII and 50D).