Update: Nintendo support has confirmed that the Pokemon Bank and Poke Transporter are officially delayed in North America due to Nintendo's servers seeing high holiday traffic. No new release date was announced.
Let's be blunt: Nintendo's online services are quite destroyed right now. Both 3DS and Wii U eShops are virtually unaccessible and luck be with you that something doesn't go wrong if you do manage to get past the loading screen. While due in part to the wave of Christmas 3DS and Wii U presents, Nintendo suspects something else may be contributing to the congestion -- the recently released (in Japan) PokeBank. Thus, they pulled it.
Yup, the PokeBank and Pokemon Transporter, which launched earlier this week in Japan, are no longer available on the 3DS eShop. Nintendo's hoping that the removal will help get online services back in order, then the PokeBank can be launched during a less stressed time down the line.
North Americans and other western territories are faced with a different issue, however. PokeBank has yet to even be launched in our territories. Does the removal of the service from the Japanese eShop imply that a delay may be order for us? Curses! All of these Pokemon are packed and ready to travel to the bank, but their flight may very well be canceled. Won't somebody think of the Pokemons?
With the North American PokeBank planned for released on December 27 many Pokemon X and Y trainers are left wondering when and not if they'll be getting news of the delay.