Roger Waters is another one of those people who achieve fame and fortune and all it does is make them angry and bitter. But if you think he’s angry and bitter now, if he puts out a Roger Waters version of Dark Side, the critical and commercial beating it will take will really give him something to be angry and bitter about.
In a related vein, If anyone is interested in another artist rerecording their 50 year old masterpiece, check out Dave Mason's, "Alone Together Again." I was skeptical at first, but he did a really good job of it, IMHO. If you like Dave, check it out.