Sorry to hear about that MC.
Getting back on topic, I think that the VR Halo is a bit of a fantasy.
By the time that those VR/MoCap game systems hit the mainstream I'm sure that some other FPS will take advantage of it, but Halo will probably be a distant memory. I've seen games in development for arcade centers and amusement parks that utilize this, but I'd have to say that the odds of Bungie every getting into that tiny little market are very slim.