So I'll just start off by saying that I am thrilled with how GW2 is progressing. I'd be perfectly happy if they released the game without any modifications beyond bug fixes. However, I think it would be a cool idea if there were profession or race specific dodge animations. For example, the necromancer could assume that awesome Death Shroud skin (but not enter the real form and have his or her ability bar change etc.) and quickly glide out of the way instead of rolling. Another example might be thieves disappearing in a puff of smoke and reappearing a short distance away. This would have to have some way for players to tell which way the thief is "rolling" to keep it in line with other animations. To keep this purely cosmetic the animations would have to all match the distance traveled of the current roll animation and have the same built-in invulnerability period.
I realize it is in all likelihood much too late for ArenaNet to implement this, but it's still fun to think about. What dodge animation would you like to see for your favorite profession or race?