Further information on an XC15 styled ILC

Back in November, we discovered the first hints of Canon incorporating an ILC mount in a form factor looking like the XC10/XC15 chassis.

Now we have further information on the mount with a new patent application; 

Japan Patent Application 2018-112698, shows a XC15 styled camera with an ILC mount.

It's unknown if this would be an EF mount, even though it does have the required pin structure for such a mount, and the mount looks considerably large, and the secondary drawings look fairly deep, negating perhaps the EF-M mount as the selected mount.