First hint at a hybrid video stills ILC camera?

This patent is discussing a method of with one hand, being able to remove a lens from an ILC - without the risk of watching said lens bounce 10 times down a sidewalk ;) 

What I personally found interesting was the camera body illustrated in this patent.  Canon usually applies for patents to solve problems, and this looks to solve a problem with a hybrid video and stills camera.

This is certainly a mockup of what an XC15 looks like - but an XC15 isn't an ILC ;)

Is this a hint that the XC15 is moving upscale and getting an APS-C sensor and an EF (or EF-M) mount?

Or more thoughts that canon if they go mirrorless needs to address a camera body that should move from looking and acting like a DSLR to one that can move between stills and video and provide an ergonomic approach to both.

This patent goes into an incredible amount of detail on the lens mount, more than you'd believe if it was simply an idea without any potential for fabrication.

Japan Patent Application JP2017-138437A

How to view Japan Patent applications.

Unfortunately, there's no direct way of linking to the patent application (sad!) however, this is the easiest process to view a japan patent or application.

1. Go to the Japan Patent Office search page.
2. If it's a patent application (they are usually in the format of YEAR+Number ie: 2017-011300) then type the patent application number into the second field down from the top where it says publication of patent application. 
3. Click on search.
4. Then click on the patent application number link, and there's the patent application!