It's not really major... Appearances are based on perception. Graphics are forever changing. Just because the Master Sword in aLttp is 2d, does that mean it is not the same one from OoT?
Disregarding that, it is decrepit. Any shield may have faded due to time.
The only issue with this is that the events of Wind Waker and the events of Twilight Princess occur not only in a different timeline, but parallel to eachother. This would make this impossible.