What arko said.
Think about it, people will get mad and stuff when their console will be struggling to run a game properly and PS4k will be running it easily, and at better frame rates on the same resolution. They could very well feel cheated since they, not so long ago, had the most powerful console, but not anymore. I just feel like this could ruin Sony's fan base or something. Hope I'm wrong.
But like you said, can't really make judgments now. Will just have to wait and see what Sony does with it. Plus, now I'm conflicted. Whether to buy PS4 or wait for PS4K.