How do you think Sony and Microsoft could improve their next-gen systems?

We all know that graphics can keep improving over the gens, but will that be all?

Gameplay-wise, could they add new features to their systems? Which ones?

Xbox could add a gyro to their controller. (They still don't have one, right?)

$499

Also, this, but on the other hand: https://www.vgchartz.com/article/469387/ps6-ram-and-ssd-alone-reportedly-to-cost-over-680/

Only expensive accessories (like VR) can add anything meaningful. But no one is going to include an expensive accessory to an already super expensive hardware. It's more likely that they will offer stripped down SKU's without a controller or cables lol. The best we can hope for is a standard controller with paddles, but that's being too optimistic (if you even care about paddles which I don't).

There will be portable SKU's, but the home consoles won't add anything of much value. Maybe another gimmick like touchpad/haptics/whatever.