Inevitable on a long enough timeline I’d say. It’s just a question of whether that’s a 5, 10, or 50 year deal.

I think it's far from inevitable, personally, but it might happen eventually. Right now, it doesn't seem likely (for general use -- I fully expect it will get widely adopted for certain niches), but who knows what will happen tomorrow?

It is here now, it is just a question of how widely distributed it gets.

Last week I was playing through Asgard’s Wrath 2 on the Meta Quest 3 which is a AAA game for standalone VR which has the scope of a big console release. A lot of people use VRChat already. I could see the Apple Vision Pro being ablem to synthesize a very good avatar with its eye camera.

Yes, I was talking about the likelihood of widespread adoption, not the existence of the tech.

High-end video games is one of the niche uses where I do expect fairly widespread adoption.