What if, instead of using the leveled item system, Skyrim used an weapon upgrade system, similarly to the Ebony Blade. For example: Dragonbane, at all levels, would have 12 base damage, 10 shock and 10+ to dragons. After each dragon you kill, you get +2 to the dragon damage enchantment, until a limit of 30. IMO, this would make the players worry less about reaching a certain level before starting a quest, which is always annoying. Maybe it could apply to the Daedric Articfacts too. Let me know what you think.
I actually like the idea. But as Courier said, they won't change it. But maybe they will implement it in a future game? We can only hope.
EDIT: After giving it more thought, I don't think it would work. Because you could go grab a weapon at level 1, upgrade it, and be overpowered. It would only work for daedric weapons since you have to be a certain level anyways. So that right there would make the system pointless anyways. :/