Canon has just launch it's new 5D serie camera, The 5D MK IV.
With 30.4 mpix, 4K video, dual pixels sensor, 4K video, wifi and GPS, this new camera is a slight improvement in terms of technology compared to the previous MK III version.
I am really uncertain about investing in this camera. In fact, the price of the MK IV is at par with the 5DS at 50 mpix. At $4,500 CAD, it is more expensive than the Sony A7R II with it's super backlit sensor of 42 mpix by about $700. And more expensive by about $1K compared to the previous version 5D III.
For now, I will keep reading about it and wait until a discounted price comes up.
December 2016 Addendum.
I shall receive a 5D MK IV in a few days for testing.