I think maintaining current builds is priority right now. Plus, there is early development on dumping Digic6 so I would think that the 750/760, 80D and 7D2 would come first - at least I hope....
There could be ML for the 5D4 but I would think not for at least a couple of years.
There could be ML for the 5D4 but I would think not for at least a couple of years.