Pokémon games do have decent legs though, and this game would sell a lot, even on the Wii U, so it's tricky
I'm hoping that we're getting an April to June arcade launch for this and November/December Wii U launch for Japan, Spring 2016 worldwide...or maybe they do it the other way round and have it Winter 2015 for Europe & America, where arcades are dead, and Spring in Japan where arcades thrive.
Note: the above is speculation and not indicative of insider knowledge
Or they could opt for the console port to be worldwide (or close enough).
After all, much like with the Persona 4 fighter, even the larger fanbase in Japan would likely be happier with a console version that they can play at home with friends, instead of continuously losing their yen by getting bodied by hardcore players that dominate the game centers.
But in any case, I'm just glad I still have my Nico.