Canikon MUST switch to EVFs

To my understanding, one of the big problems with EVF (mirror less) is the autofocus. PDAF is way way faster than contrast based AF, and with a mirror box they can have very fast autofocus. Sony has worked around the problem with the SLT, however at a cost. Loss of light, and poorer low light capabilities. Canon especially, but Nikon also, are very good in low light. I don´t think they are willing to make a step back in this area just to have their pro bodies with an EVF. If they can overcome the problems, not work around them and compromise, they probably will have EVF in a few generations.

Perhaps the best of both worlds? In the viewfinder they can have a small projector and a glass plate, giving the OVF a head up display just inside the ocular/eyepiece. Then they can add loads of information in the OVF. Focus information, exposure information/warnings, spirit levels... the possibilities are endless, AND they have the autofocus of todays pro bodies. That, or a transparent OLED screen, overlaying the OVF. Engineers will figure it out if they are going this route...