Recent rumors suggest that Canon 5D Mark III will have Enhanced EOS HD Video with 18 Megapixel sensor(Same as Canon 1DX?) for flawless lowlight performance, According to NL “5D2 replacement will be aimed at ‘cleaning up’ in the DSLR video market, complementing the video specific 1 series mentioned at the recent Hollywood announcement. It was also suggested that it would not be any more than 18MP, and that any higher MP camera was ‘quite some time off’.”