Hard to say. VR might be a gimmick in the game space. On the other hand, taking a step back and looking at the hardware, there's been a progression since at least the '70s of working immersive infrastructure getting cheaper, easier to use, and less nausea-inducing.

This local maxima of design and hardware may be a fad, but if it is, I expect in my lifetime to see another fad in maybe 10 years. The tech is just getting too cheap for people to not risk throwing a few mil at it every so often.