Prior reports pegged said display as being of around 4K resolution together. It is also said to come with foveated rendering, which makes use of eye-tracking tech. This allows the headset to only fully render areas a user is looking at to lower graphical processing load. The headset itself is also said to support haptic feedback.
At any rate, it looks like the next PS VR still has a long way to go before it is ready for the public. But it does look like it will have all the bells and whistles of the current generation PlayStation console when it does.