We’re told that the Canon EOS 5D Mark IV will be announced before NAB 2016 in April. How far in advance of the show, we’re not sure. We do note that WPPI is at the beginning of March 2016, while products are rarely announced for that show, WPPI (wedding photographers) is a big target market for the EOS 5D Mark IV.
We’re expecting a new Cinema EOS camera for NAB in April, so I don’t think a stills DSLR will get announced specifically for that show either.
While the EOS-1D X successor is expected first, we haven’t been told when that will be unleashed on the masses.
No specifications were given for the EOS 5D Mark IV at this time.