You know, there have been several similar questions regarding the C-series and the 1D series, and ML will not touch then, and explicitly declares so soon after canon officials mentioned they would sic the lawyers on those who tinker with the 1D cameras.
That being said, ML is open source.
I wonder if people who could afford these bodies can, you know, put their money in a pot and hire someone who knows ARM programming to hack away on these cameras.
Just a thought.