If you're among the few who actually don 3D glasses to watch movies at home, you're not gonna like this. If you're everyone else, you probably couldn't care less.
3D, once hailed as a breakthrough new feature on TVs and propelled into mainstream consciousness by the blue aliens of "Avatar" and the efforts of ESPN and DirecTV, has been waning in popularity for years. Now it has absorbed that most telling of deathblows from the biggest gun in the TV hardware business.
A source at Samsung, who asked to remain anonymous, has confirmed to CNET that none of its 2016 US TV models will support 3D.
I don't know if 4K tvs will have a big run either. It took networks, local stations, satellite and cable companies years to convert. Many local stations are still broadcasting in 720. I don't foresee companies that just spent large sums to convert to digital and HD being ready to upgrade again. With cable and satellite it becomes a matter of bandwidth. My cable is on a fiber optic system and they have bandwidth problems at times.
4k isn't stopping. You can shoot 4k on smartphones and majority of movies and TV are shot in 4k capable cameras(The Revenant was shot on a new 6k camera). Internet will be leading the way as 4k is already available and you're going to see the lines between internet and cable blur as the years go on. Cable companies are well aware of cord cutting and offering hybrid products.