Guess I'll post my thoughts on the topic from another thread:
My prediction of PSVR3 is well documented in my post history. Not for next year, but within a couple of years of next gen kicking off. My prediction has been that PSVR3 is wireless and uses a direct connection to the PS6 for super low latency streaming. This will also be the way the Portal 2 will direct connect to the PS6 for ultra low latency gaming.
My money has been on a PS6 Portable and a PS6 Lite box that uses the internal guts of the Portable. An even higher end hybrid PSVR3/PS6 Portable device would be expensive, but not ludicrously so. I'd imagine it would be no more expensive than the current PS5 Pro. Think about it, it'd basically be a PS6 Portable, reconfigured with some extra lenses and whatnot. Managing the weight would be a task, but not an impossible one I think. I think it's feasible, but not something that'd launch next year. I could see a scenario where they launch a cheaper PSVR3 that's wireless and direct connects to the PS6, and a higher end PSVR3 that's fully self contained and utilizes the guts of the Portable maybe 1-2 years into next gen.
The main challenge would be the FPS and resolution. The PS6 Portable is very likely to have a 1080p screen for portable mode, whereas a VR headset would have to drive 2 displays that're even higher resolution. PSSR2 and frame gen could probably help to a degree, but I'd be hesitant to say they could help scale games up THAT much to provide an adequate VR experience. This would be the biggest reason I would say such a product might not see the light of day and we might just see a traditional PSVR3 instead of this hybrid.