Here it´s a comparison, side by side, of images of chapter one in the 4R and in the actual version.
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Obviously, the images on the actual version are better. Not going to argue about it.
But it´s the difference worth the long delay?
Obviously the answer of the developer would be a "yes".
But there are people (me included) that things that "Perfect its a deadly enemy of Good Enough". And the images of the 4R versions seems good enough to me. I have played the actual version and played, right after finishing the run, the first 2 chapters of the 4R and (with the exception of the console) the enjoyment of the game have been in the same ballpark.
It is what it is, and it´s the developer game, not mine. I just hope that this would be the definitive run.