Any news on this topic? It's been one week, which is a long time in the VR world!
I'd love to buy a Vive Pro Eye today, but this makes me hesitate. In my research as neuroscientist/neuroengineer, the most exciting effects are real-time (foveated rendering, prosthetics, gaze-contingency), which depend on low latency. These effects will tolerate low accuracy/precision better than high latency.
So, does it look like there is a delay in registering eye movements relative to head movements? If the delay is constant, this is workable. If the delay is variable/unpredictable then the situation becomes more difficult.