Honestly there are so many ways to handle (and slightly differentiate) iconic scenes from previously published material so that you are not actually copying anything, why would a publisher risk cleaving too closely to previously published material at all, and risk possible legal action against them for doing so? I would never, as a publisher, attempt to replicate a previously iconic adventure and try to rely on Fair Use to keep me out of trouble. Why not deviate slightly more, so your adventure can emulate the flavor of a previously published product, while at the same time being different enough to consider your product an original, and not some close copy. Why risk copyright infringement, when it's so very much easy to be different enough not to be confused with anything previously created? Why risk it? Why ever put yourself in a risky position as a publisher ever - it doesn't need to be done.