What do you expect from the Duelist?

I'm not sure how the whole 2h duelist thing really fits the whole concept of a "duelist"

I see this being sort of like a non-tank warrior type class. Probably will be overplayed as well

Well gameplay wise i expect him to be very mobile, which will probably make him a pain in the keester in PvP (if such a thing is implemented i'm still reading through all the information in here). Character wise though, i would love to see him wielding a scimitar or other light sword type in one hand and then nothing in the other hand. I feel that a shield might make him too much like a fighter. Anyway, that's my two cents :)

Mobility seems like a key factor to me. With the skill jungle there seems to be a lot of potential options.

I see crit damage, crit avoidal, movement, combat maneuver/condition applying such as slowing, tripping, blinding etc.

strangely I feel he should either use:
A.) one sword in "main" hand and fight as if he was dueling like you would see two people fighting with rapiers. The one sword being something that has a fast attack speed
B.) possibly using two quick swords and or daggers
C.) using a fast sword and holding a shield

Really I wouldn't like seeing him wield two actually, using two swords game mechanic wise is great, but in all reality its pretty useless, challenging and awkward.
All in all he should deal fast melee damage, maybe not BIG damage in a single hit but faster damage then the other classes(so far announced) would deal.

I expect the free-roam PvP class. Duelist will find the best place in PvP/PK system.

I expect the duelist to be a very mobile and quick not being able to tank but still wielding a 2 handed SWORD since axes and maces favour the maruader i will play the duelist like that anyhow =).

I would expect a kind of 'classic' dueling fighting style, basically one light but swift sword such as a rapier able to parry but not necessarily block blows. Of course you would be able to put gems in it and do various magically enhanced blows.

i expect, a rouge mixed with a warrior type guy

Would be really awesome though