While the rumors are rumors, nobody is predicting this thing to be affordable even by Apple standards. Current guestimates are $2-3K. Seemingly their initial customer will be businesses (similar to Microsoft's HoloLens), and their "killer feature" will be virtual meetings (similar to Meta). It is expected to use hand/gesture tracking.      
I will add this though: I've used VR headsets extensively, including stand-alone/battery ones. When I read that they're moving the batteries and their weight off of your head and onto your waist my first thought was "about fucking time." The [high] weight of VR headsets is a major literal pain-point when you go from using them for a few minutes to all day. I literally had to take days off just to recover.