If it's true then it's just a case of ...and so the pixel peeping race goes on........ Yawn!
I believe that Canon are probably at, or near, the top of their game squeezing 21Mp onto a 35mm sized sensor. Hasselblad have some headroom to play with and good luck to them. But, as Bernd implies, who needs it?
T/S, on the other hand, would be very interesting.