If this has been mentioned before, i'm sry.
I would really like to have Anet introduce Mesmer swords into the game. I don't see why not? Mesmers should have their own swords to use for IW that have Mesmer Req. Last time i checked, all swords require warrior attributes. There might be a drawback though since secondary mesmers can use it, so i say add in a "req. 13 Ill or IW is disabled" or something like that .
Why? Because in the high-poly pictures of GW:P, the mesmer indeed had a sword.
From this image, people who don't play GW might think that Mesmers wield Swords, not canes or staves. The armor she's wearing does look like the armors in the game and that mask is sorta like the domination mask. But the sword? not a single Mesmer sword. So i don't know why they didn't implement the sword into the game for Mesmers.
So I would suggest them adding in the epee or something. I think Mesmers should wield Fencing swords, looks like it. I think of Mesmers as rich nobles that fence so maybe a fencing sword will be best since other swords are taken by warriors. Plus, which warrior would wield a thin blade that looks weak?
So... i dunno, here'e a pic of an epee (or should i say epees):