Yep 5 mil from Samsung and the rest Sony p4 VR I guess! Until there is no decent sales figures about VR from OR and HTC, guess here we are talking about, I keep being critical about the high end VR future. If something is good it will come in mass and we do see lots of other companies who do want a piece of the high end VR cake.
Still think, it will be the mobile phone AR that does have the future, combine the real/digital world. We did see something at the Pokemon hype and Lenovo Tango. As a sample why not play Battlefield in the woods only using google glass and your mobile phone.
That does not leave that VR is indeed a mega immersion factor and if Rof/Woff does support this, I'm going to get it, but is it intresting for OBD to invest labor in this VR while stil using the old modded to direct9 game engine from CFS3. This answer is only to judge by OBD I think.
Do not get this as critsm on your topic, but maybe the VR support answer is from 3th party software makers or modders and not from OBD.