No.
We need 8K at the very minimum, preferably up to 16K. Why? VR. If 8K is being developed for TVs, that means that we can expect it to come to monitors in the future and hopefully someone will shrink it to the size that's required for VR.
Of course, to actually run 8K at 90 fps is a long, long way off, but you need an ambitious target. That's essentially what we'd need for a really good VR experience, until then we will only get a bunch of software hacks that barely patch over the reality that the current resolution is inadequate, by a long shot.
Also, 8K TVs are not entirely new. We've seen it before on last year's CES(Sharp had one).
Nordic Hardware, a Swedish tech site, compared the 4K and 8K TV's(of equal size) and said that there was a difference that was apparent and that the 8K TV looked better with 8K content on(Sharp had their own custom stuff).
All these higher resolutions just prove that the historic roles of resolutions of GPU power have been reversed. Now it is the GPUs who are trailing behind the resolutions and not vice versa and this is a kick in the ass to both AMD and Nvidia to accelerate.