A latest rumor is posted online that giving us information that the two different sensors that are expected to be implemented in the upcoming Canon EOS 5D Mark IV at the testing chambers one is 18MP sensor, the other is 24MP sensor. However, it’s also told that the 24MP sensor has the probability to come to 5D Mark IV final version and the next optical part information is that the camera may employ the shooting speed of 8fps.
Keeping in mind there should be nothing lacking in features and performance, canon splurged huge money on making this to 5D Mark IV project.
A report (thanks) of 5D4 testing, where there is still a mix between 18 and 24MP. 24MP is the likely final outcome, with the lower MP sensor testing AF speed and buffer management issues (less than 8FPS is the likely shooting speed).
The other rumor from different site that canon decided to release this 5D Mark IV after the release of Canon EOS C300 Mark II and Canon EOS-1D X Mark II