I still cannot find a consumer use case for this. The Wii, Kinect, Sony PS Move, all failed to do anything in the gaming field. I don't see how Apple would change anything.
On the other extreme, there's Valve Index, Oculus, are extreme niche, and I don't think Apple are interested in such extreme niche market.
In any case, if this were true, it has to be shown in WWDC. You cannot launch something without any dev support. If we don't see anything in WWDC, then it's just a rumor.
They and others are coming out with these various VR and AR devices. They will probably come with health and usage warnings including ScreenTime notifications. If the public mocks how buggy they are or posts tons of fail videos on YouTube then it will either improve or fail like a G4 Cube.