I'm in the same situation, only I'm from another country. As things look, it seems more important from where your account is. So, if you have an english Skyrim edition but italian, german (accounts from Switzerland and Austria also fall under german players...), spanish or french account you have to wait, even if you have the international release edition.
Really classy Bethesda, annoucing that Dawnguard will be late for these countries two days before Dawnguard, giving the middle finger to all players who bought the international release because they excactly expected this [censored].
Really disappointed, if they try to force the german version of the DLC on me I'm not going to get it. Really, really bad marketing.