I agree a Small EVF is needed. But, that EVF is going to need to have at least the same resolution as the camera’s LCD screen (full HD), or it will be disappointing and it will not be able to pull an accurate focus with WA lenses. I tried pulling focus on a 9.5mm lens with the Cineroid Retina screen (a 720 res screen) and it was difficult at that lower resolution. Same lens withnthe BM Ursa EVF was much better and pulling an accurate focus is very doable, and as different as night and day compaired to the Cineroid.
Any new EVF or Monitor is going to need to be OLED, as this is the new standard by which with rest will be judged. Once you try an OLED screen, there is no going back....
Tony, the VA7 is very nice, but not quite an EFV, eh?
Well Rick, the also excellent Zacuto OLED Gratical Eye cost twice as much!
Cheers