I personally doubt Canon will issue a 10-bit 4:2:2 codec for the C200. It would be nice but pretty unprecedented if they did.
They did eventually give in and issue a 24p mode firmware for the 5d Mark II. It was almost ten years ago now, but there is at least SOME precedent for change. *If you recall the 5D2 originally was 30p only. When they added 24p, it sold off the shelves for a bit.