It seems the most logical path for Canon would be to make a 5Dmk3s/x or some such thing as an answer to the D800.The need for a bulletproof body such as the 1D class for even most pros is dubious.Canon is quite conservative and the demonstrated success of the D800 fairly calls out for response.The high status 1D bodies and D4 bodies do not garner nearly the attention (and certainly not the sales)