I second this. Morrowind had some great one of a kind weapons and armor.
Hopesfire and trueflame come to mind.
Don't forget Oblivion, it had many unique looking enchanted weapons. Goldbrand, Umbra, Ebony Blade, Necromancer's amulet and so on.
Well I think we have plenty of diversity between normal weapons with all the different material types and weapon types, especially since it
seems like we will be getting new polearms and staves are one handed and we still don't know if there will still be two handed staves and so on. As before, we should definitely get all unique artifacts and maybe even some enchanted weapons also, but there should still be typical enchanted weapons also.