I'm trying to spot a trend. Apple is jumping into AR with the iPad Pro and iOS11 in a big way. It only makes sense to leverage the iPhone Platform into VR now. Overnight IPhone 8 would be the #1. VR platform to develop on.
That requires a high display refresh rate. We have on high confidence leaks that Apple purchased millions of 5.8" OLED displays from Samsung. Samsung OLED displays like the S8 and NOTe 5 can run their displays at 96hz when in VR mode.
It would be very likely that Apple has a new generation of these displays and can implement 120hz ProMotion and enable VR functionality.
Trying to buy and secure several. Website domain names ahead of all this iOSVR.com iPhoneVR.com etc etc. Gotta be one step ahead.
I don't see Apple moving to a materially higher refresh rate until next year.
Watch and see come Sept.