While there are already wepons such as Anduril and Ringil I feel like they should add more. For some examples Aeglos, Eol's swords (Anglachel, & Anguirel), or Orcrist. These weapons should be obtained through creative but later they should be obtained through long quests that lead you to dungeons, but this would be in the far future. For now more legendary weapons would be nice.