James Cameron of Titanic and Avatar fame apparently lives pretty close to the leading edge of film-making technology. He is also an avid deep-water enthusiast. In this interview he talks about a variety of topics, including 3D. He says that 3D via glasses is dead but that new 4K technology will allow for glasses-free 3D. He mentions Dolby.

I was once deep into leading-edge TV technology back when HD was just being born, but I've not participated in 3D developments. Not sure how "glasses-free 3D" could possibly work.