According to Canon Rumors, the Canon 5D Mark IV will be announced on August 25, 2016. CR has indicated that they’re confident this is fact, not rumor.
It’s pretty well publicized that the 1D-X mark II has always-on illuminated red AF points. Are you curious what they actually look like? Sure, plenty of websites show you a drawing and describe it, but I’ve actually got a photograph for you to see. The image quality is terrible – I did this with my cell phone – but you can actually see what the interior viewfinder view of the camera is.
The red light is constant – it does not blink. There is also a variety of other display options such as only showing the AF point that is selected.
The camera menu offers two brightness levels, “normal,” and “brighter.”