@Law: You have a password from the first game? What did you get using it on this release?
I got the Etoria Crown (Town Crown from 1), a character from EO1 that was in my guild will appear in a mini-quest much later that is supposed to be very difficult*, and the guild name carried over as well.
You can still change the guild name once if you wish.
It is also possible to bring the Etoria Medal, instead of the Crown. I don't know what determines this.
*Honestly not sure about this part, I'm just going based off reports from other players. I can confirm the crown/medal and guild name part though. Once you put in the password properly it brings up your old guild's name. You are asked if you want to change it, and then you receive your item and go about business like normal.