People would buy tickets to watch a 4k movie content, just to see what the hype is all about, Then when it's all settled and done
And the hype wears off, they'll go back to watching on any resolution. But would rather watch 4k on TV instead.
I don't believe that for a second. There are theaters already that have 4K movies and projection equipment, and no one goes to them especially because of that. The only 4K hype is around 4K TVs only, and they can satisfy that curiosity in Best Buy.
This isn't like 3D, where the theater/TV watching experience is (supposedly) going to change. Adding a third dimension, even if poorly and only as a gimmick, is a lot bigger change than a slightly sharper image. When theaters went digital, the resolution went down versus 35mm, and you didn't see a bunch of people up in arms about how blurry films suddenly looked.
I'll bet even the 4K proponents in this forum wouldn't notice if they went into a theater to watch a film they knew had been produced in 4K and it was shown in 2K because the 4K equipment was broken down.