Canon must be desperate to avoid using the name "3D" and "4D" if it will use "5Ds" instead.
It went from having (1D, 1Ds) -> 1DX to deal with market confusion.
Why does Canon believe going from 5D3 -> (5Ds, 5D4) won't create new market confusion?
Hasn't it learnt from the sins of the past?
I suppose like Nikon & the D3, D3s & D3x, Canon makes some assumptions, someone about to place an order for a $3k to $10k Camera may have dome some research, may have made a choice based on the research, may not be a fool with his/her money, Oh, I forgot, your view is anyone that purchases Canon, must be, a Fool that is.
In the past there seemed to be no issues with understanding Canon 1D, 1Ds, Mark I, Mark II, Mark III, 5D, 5DMK II, etc
Honestly Dilbert, don't you just get tired of all the Canon Walloping BS ??