General

well technically you have to JA into 4th job now in order to hunt peridots, but yes they have a fully fledged 4th job and hyper set up
the big difference is you can summon a whale <3 <3 TB FTW

Create after. Unfortunately, I already had a level 70 Wind Archer, level 50 Thunder Breaker, and 120 Dawn Warrior before I even knew about the revamp when it was in KMST, so I can't really experience much of the class.

At least they don't need mastery books!

If you choose to do it now you have some benifits like starting 20 lvls into 4th job getting to start with cool skills and dont have to deal with a croud who may have been waiting too
ALTHO there are a bunch of drawbacks
1. you have to ACTUALLY job advance it isnt that bad but ya know but still
2. its harder to train having lower base damage depending on funds it could become tedius
3. if you wish to train DW it is such a long winded class IMO it takes some time altho i still think its kinda fun
4. you cant nescisarrily tell if you will like the revamped class (such as if you prefer said playstyle and make a TB pre revamp like it then that doesent mean you will definatly like its revamp)

And for benefits
1 if you get to 120 and go hunting peridots (if you havent already) you get bonus buffs for your char. (not sure if you will gain the benefit like mihile after patch of getting a UA at 100 if you can even UA)
2. you can put together equips which with this UI you can see how items effect your range etc.
3.you can be ahead of a croud ( i refuse to finish off my DW its like level 80 in scania im gonna try it out tho)
4. You can collect CORES for ease with the future leveling 20x HP spawn cores having slots open for said cores etc. etc.

as one said before me and showed a pic there is a new hairstyle and outfit so they look a bit different too
I personally would say (depending on the class) that TB and WA are still pretty easy to level so i would do those now altho the current DW (when you have limited funds) is fairly difficult now and after the patch it will level with ease ( altho my DW was completely unfunded in scania as i main in windia XD) ATM i have a TB already 120 UAed and i am equiping it and my friend has a WA that i am going to try as well and i have a level 84 DW i am gonna go and try after its vamp
i hope they would hurry on the BW revamp and the NW revamp both classes need alot buffing
i hope i helped with your descision ( i would say get to 120 pre vamp)

@Feroxity: Making a DW most likely, so either way first job will be semi-boring

In the promo, they showed the new male default for the Cygnus Knights, so I wouldn't doubt it.
Make it after the patch just to see :O

[quote=gnegrurag]They're suppose to look like this.
http://orangemushroom.files.wordpress.com/2013/01/knights-of-cygnus-creation-m.png[/quote]

Much thanks!

and @Feroxity: I like to get the more boring lower levels out of the way first (10-60 or so)

yes they do

[quote=Feroxity]You should create AFTER.
Pros:
Enjoying the new class
REwards for leveling
There is a new outfit and hair iirc.
blablabla[/quote]

cons: no UA. :c

They're suppose to look like this.
http://orangemushroom.files.wordpress.com/2013/01/knights-of-cygnus-creation-m.png