No, but there's been speculation about certain conspicuously underdeveloped aspects of the plot that were probably more fleshed out originally.
Another thing to be gained from a remake is a new localization. Ted Woolsey famously had to translate the entire game in just five weeks while the programmers and writers were still in the middle of development, often forcing him to go back through and revise large portions of an enormous out-of-order text document. And despite the man's abilities, it shows.





