If we limit ourselves to "serious audio/HT" listening, we can throw out all those Amazon Echo type (never knew I needed them) devices.
If we limit ourselves to 10 - 20 years in practical terms, we can throw out telepathy and the like.
I for one hope that the phenomenon towards "needing" to be constantly stimulated ("entertained") such as portable earbuds, TV's everywhere, and radio/streaming in every room of the house will end. It's mind numbing, limits critical thinking, and separates us from reality.
I predict various ambisonic convertors will be offered to provide decent to good 3D imaging for headphone use from traditional recordings. Much cheaper/easier than having a decent listening room (size, shape, isolated) for dedicated listening which is 98% a private function anyway. Shared listening (mostly HT) will be handled by wireless active/powered speakers except for the vintage audio crowd who like spinning vinyl and using tubes.