Are you actually in the Alpha? I know this is a common complaint on these forums, but I
personally don't think the Fury swords look as blurry or pixelated as feared. Here are a few comparison screenshots.
Fury
Arms
Prot
Obviously it's easier to spot imperfection in stills rather than a moving image, but I don't see a substantial difference. The only area I think Fury looks blurry is really around the grip, and that's generally covered anyways. I think it could use a little bit of sharpening along the interlacing filigree, but overall, it doesn't look significantly worse than the others.
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Even better, here are a couple comparisons from WoWhead, which have much sharper coloring and a better background for comparison.
Old Fury
New Fury
In this comparison, again I really don't see any stretching. There is still a slight blurriness on the grip, though I think that's due to the design, as it's present on the old version as well, it's just less noticeable due to the shorter size.
In fact, now that I look for it, that blurriness on the grip is present in a lot of weapons; probably by design, as it's intended to be covered by the hands.