I should hope that’s not true, as it would not only add grain, it would also cause needless generation loss. It’s better to keep everything in the digital realm as much as possible for this kind of project. I for one would much rather see the film restored as clearly as possible than try to recreate precise amounts of grain when I can assure you Lucas never would have wanted any grain at all if he was capable of avoiding it at the time. Grain is something I consider merely an artifact, not an actual part of the original cut.