We'll finally be able to change the email / username of our GW account?

From here: http://support.guildwars2.com/app/an...tail/a_id/8961

Note the bolded statement.

Linking Guild Wars 2 to Your Guild Wars Account
If you are having difficulty linking your Guild Wars accounts, please try resetting your password when you encounter the password error message. We would also like to note that you will have the opportunity at a later time to change the email / username of your original Guild Wars account.

Is anyone else reading this the same way I am? We'll finally be able to change the e-mail address of our GW account, whether it's linked to an NCsoft account or not?

It's been a long time coming anyway.

I've been trying to change my email for months, and I just tried it again. Still not working for me, though I only have the GW trilogy. Maybe it works only for GW2 accounts?

As far as I know, you have always been able to change the e-mail address for your account, but you couldn't change the username for your account, which happens to look like an e-mail address.
They probably just got tired of answering the emails from the bozos who can't tell the difference.