Faithful Adaptation of 'Roadside Picnic'
On the one hand, I would love to see an adaptation of the Strugatsky brothers' Roadside Picnic that's more faithful to the book than Stalker, which is only loosely based on the novel. The book introduces a whole treasure trove of bizarre phenomena that would work great with the right FX team.
On the other hand, I know perfectly well that if Stalker is ever "remade," it won't be a faithful adaptation. Rather, it would be a generic Hollywood sci-fi film along the lines of Steven Soderbergh's second-rate remake of Solaris.