An update to this investigation is posted in details here
We are currently confirming the compatibility of [Camera Window], [EOS Utility] and [Map Utility] with macOS10.12 (Sierra), but operation checks have not been finalized at this stage.
In operation checks based on preliminary information, we have confirmed among other issues that connection using a USB cable is not possible.
Users that use the above function are asked to please note that use of this function may not be possible after upgrading to macOS 10.12 (Sierra).
We will update on this notice once we have confirmed functionality of the matter.