EDIT: Thanks to Robert M for having pointed out in the comment section that there…
Canon full frame mirrorless camera still in works but not set to be announced for next years [CW3]
We know since December 2014 that Canon is working on a full frame mirrorless camera, and we knew that it was a long term affair. We also knew that development of this full frame mirrorless camera saw delays because of issues related to the mount type. All this got another mention in a new rumoring about the fabled Canon full frame mirrorless camera, along with some new tidbits.
The latest murmurings suggest Canon is having troubles making EF lenses work, suggesting there will not be a new mount type. Instead, EF lenses would be mounted without an adapter. Such a full frame mirrorless camera is said to be announced not before 2018.
Could there be a full frame mirrorless camera with fixed lens, possibly before the MILC? Not unlikely. There is a patent pointing in that direction, which is a good sign at least. Another patent clearly shows that Canon is working on a full frame mirrorless camera. However, there is an interview with Canon execs that doesn’t really make you think Canon is particularly enthusiastic about the idea.[via Canon Rumors]