I feel for you in Europe. Wonder why the delay? I was about to say that it could be due to the many languages, but they will probably have the choose the language feature from XY which we had in Japan and North America too...
I think there might have been something that would've caused it...maybe in order to not break the e-shop again? After all it is near the holiday season. Japan and North America are generally seen as the major markets, so they might've seen Europe as disposable. Though they may also have pushed Australia's date back too as we don't know anything about them. Perhaps it'll be the 28th too.