I would love to see consoles get support for a proper head tracking when using headphones, would be really awesome with high quality object based environments.
Even when mostly watching toward screen, all those small head movements would add bit of immersion..
Head tracking isn't really needed as even with great lateral movements you aren't changing your head much relative to the source of all/most sounds in a game.
That said...
Do you really move your head that much while playing games? Am I the only one who basically turns himself into the shape of my sofa, without moving a muscle for hours at a time, especially my big head?
While tracking the head's location in space isn't going to do much, being able to track the rotation of the head can be huge WRT to immersion when the sources remain pinned to it's virtual location as your rotate your head. There are a few solutions available that do this such as the HyperX Cloud Orbit which features Waves NX tech.
It's pretty incredible when you rotate your head slightly and the source of a sound remains stationary in the virtual space rather than moving with the rotation of your head.
However, they aren't perfect as they don't have absolute positioning so the "center point" can drift over time which alters the positioning of all audio sources.
In game terms, this is likely more impactful for PC gamers which sit closer to the screen and thus are more likely to rotate their head while gaming than console couch players. BUT, it's still incredibly cool if you turn your head to, let's say, look out the window of your house and the audio that you're hearing stays grounded. Thus, no matter where you are looking your audio immersion is never broken.
It's really pretty amazing once you've experienced it. But as mentioned while those headsets can also track lateral movements of the head, due to how distant most sound sources are from the player, it has extremely limited impact on the audio immersion compared to tracking the rotation of the head.
The drift problem can be solved with some kind of absolute positioning transmitter (like say the Oculus tracking stations) or inside out tracking (like the camera's on say Oculus Quest). A simple positioning transmitter would probably be cheaper, however. It doesn't need the fidelity required for VR as the rotational position of the head is far more important than the head's actual position in space.
Regards,
SB