Soldato
Well what turned me off the STALKER series was the gun handling, well in the first game anyway, havent played the others.
That's one monumental task they're trying to undertake there - it'll no doubt end up like the Black Mesa source re-make of halflife where it's been years and years and still no release.
Would be interested in it though as the physics certainly would be better and once they get the weather stuff down the atmosphere could be quite good indeed!
There are already mods to enhance Stalkers atmosphere through weather and no doubt they do it considerably better.