I don’t see Keyshot ever having a true VR mode.
The nature of Keyshot (and really any CPU based Raytracer) means that it will never be able to generate a high resolution image in real time @ the 60-90fps needed to keep you from puking in VR. Their current “VR” mode is really just a 360 render of a ton of still frames.
VRED is GPU based and it looks like they have (or are working on) their VR capabilities: Autodesk VRED on the HTC Vive - Virtual Reality and Collaboration - YouTube