My wife and I are watching the closing ceremonies right now. Great visual effects that will be even better with immersive virtual reality. I expect that in 8 years we will have the option of being able to change our point of view from the stands to down on the central floor in a complete immersive VR experience with 3D sound and head tracking.
I haven't worked in VR in almost 20 years when I helped found the virtual reality systems division at SAIC (where I handled 3D sound with head related transfer functions, motion, haptics, and some graphics) and then a year later did a virtual reality project for Disney while working at Angel Studios. Even if I don't work in VR anymore I am a huge fan and I have high expectations for what is to come in user experience.