The future of what? Roomscale is never going to be the future of home gaming simply because the vast majority of people don't have the room in their apartment necessary to do it, or want the clutter of a big roomscale system in their living room. And if roomscale can't gain a mass-market level of adoption, it will never be the future, other than being a future niche or Laser Tag-esque fad.
Eventually we'll have some sort of device that can jack into your central nervous system and make your brain think it's controlling your arms and limbs, when you're actually still sitting in a chair. But until then (and that's a very very long until), a PSVR type of experience is what we should expect to be accepted in the mainstream.
The future of where VR will be headed, once it's cheaper and more accessible. It won't be mandatory, just like it isn't on the Vive, but it will be available.
Like you said, before we get to the year 2300 when we are doing matrix vr, walking around is the next logical step.