I'll be getting it, most definitely! As for my char? I'm not sure. I'll probably stick human the first time round, play as one of my (characters) decendants. Not sure what class I'd pick though.
As for Amazon, they usually put up info on a product that they KNOW will be selling, but their release dates and such are usually guess work until something official is released for everyone. For example, they have had a release date up for SW:TOR for quite a while, and it has changed a few times, but thus far no one has heard anything from Bioware about when it is actually being released. I'd assume it is the same with Guild Wars 2.