Update: Or not – European release of Pokemon Trading Card Game only playable in English
Update: It seems that this may not be the case after all:
@NinEverything Apparently, the game is in French in France
— Meï/Frewyrn (@Frewyrn) July 10, 2014
@NinEverything nope, you can play it with german, english and french texts!
— Ben (@Digiflash) July 10, 2014
@GoNintendoTweet @NinEverything Pokémon Trading Card Game for eShop is Multi 3 (English, German, French).
— Niels (???) (@Rayquaza3010) July 10, 2014
Pokemon Trading Card Game is out in all European territories today, but it’s only playable in English. It’s a bit of an odd move considering that the original title offered five different languages. This might make playing through Pokemon Trading Card Game a bit difficult for non-English speakers.
Thanks to Ares for the tip.