I believe it will change audio/visual applications.

HDMI will be a thing of the past because you will be able to transfer the highest quality audio and video over the Cat5/6 cable including internet data.

Movie Theaters could be democratized if you could view movies over the cable allowing those wanting to start a theater to have direct access to new movies via a subscription model.

Audio/Visual is where it will be - I can see it as clear as I can see this laptop in front of me.