I feel if this actually got off the ground he’d inevitably reconstruct his 4 hour cut as it was before Fox went in and did their own thing. Cuz as we know they pushed him around on set but he did what he could in the editing room before the top dogs went “nope.” I don’t think anything SFX would get changed really. Lynch isn’t super into that sort of thing to be honest.
Minor correction, it was Dino De Laurentis and Universal, Fox had no involvement in this movie