OK, I have a question for any Tolkien folks out there who know more than I do: did Eowyn actually kill the Witch King of Angmar, or did she merely manage to render him “non-corporeal” in the same way that Elrond (or Arwen, in the movie) did in Fellowship when the river was impelled to wash the Nazgul away?
In short, had the war gone on for a lot longer than it did, would the Witch King have found form again?