Don posted on IV Board about a new OLED EVF for the Phantom Flex4 Digital Cinema Camera
visionresearch.com/uploads/docs/releases/IBC-Flex4K%20Release%20FINAL.pdf
I located the price but misplaced the link . It runs $14,000 compared to the Red Bomb OLED EVF which runs $3,900.00 . I could not find specs so it may have a higher quality display .
They also announced a LCOS EVF in April so I don't know if this is still on or if they decided to ditch it & go with OLED .
http://cinescopophilia.com/astro-design-debuting-an-8k-camera-head-and-1080p-lcos-evf-at-nab/