The rumored 44.7 MP Canon EOS-1 series camera is in heavy testing these days. This 44.7 MP camera has the ability of shooting 4K videos, but its eating batteries very fast. And Canon is still working on this camera for sensor, batteries and software. We will probably see a development announcement in late 2013 to early 2014.
And there are more confirmations on Canon Medium Format cameras. We will see Medium Format cameras to be announced at Photokina 2014. And available for in stock in 2015. Canon may acquire a medium format company to develop their new MF camera.