I just started thinking about the controller, VR, performance, and the price of the console again.
- Pressure sensitivity, depth camera and a touch screen (instead of a touchpad) on the controller are very likely. Not probably with those exact shenanigans, but it is quite certain that they will want to 'crust' the peripheral with all they can to get more profit out of the controller sales. Probably due to the fact local multiplayer just isn't that popular anymore, and they aren't selling that many controllers per console like in the past. And on a more dire note; the controllers are going to be more prone to breaking down due to the tech, and you can bet they will want to cash on that instead of just selling more controllers. No harm in that, though, it's just business. Sony probably also wants to replace the Share and Options buttons + the LED light with the new touch screen.
- VR will be integrated in the console and the controller somehow. Again, trying to drive the sales of peripherals, PS5 will have the basis to have VR. But Sony probably won't shoehorn VR like Microsoft did with Kinect at launch by bundling it 'as a must', an integral part of the console and the experience. But it will be enabled. There will most likely be VR bundles too, sure, but there's going to be a version without it as well.
- The price has to be under 500 dollars. Be it 499 or 399, but somewhere under 500 anyways. You can always pull the argument that people are buying devices such as iPhones every two years anyways, but you still have to take into consideration the value proposition of those devices. PlayStation is just for gaming. With VR or without it.
- What does that price mean for the specs and power of the console? The console might in fact be the monster that was touted in one of the leaks, and AMD knows based on PS4 history that Sony can push some serious mass of the consoles to the consumers. Sony might get a good deal on the hardware, and since the architecture is now somewhat already familiar to both Sony and AMD, the manufacturing processes have matured resulting to cheaper hardware. If economies of scale doesn't still carry that big of a reduction on price, maybe Sony will try to push for a price of something like 449. They certainly have the position to do that in the current markets. Plus, like already said, there's money to be made through peripherals such as VR as well.