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Quoted By: >>14362796 >>14362803
I don't know if this has been mentioned here or not or if there's a similar promotion in other countries, but at least this confirms that there can/will be DLC content for Pokemon X/Y:
http://bulbanews.bulbagarden.net/wiki/Quick_Balls_serial_codes_to_be_given_for_buying_Pok%C3%A9mon_X_and_Y_at_Tesco
http://bulbanews.bulbagarden.net/wiki/Quick_Balls_serial_codes_to_be_given_for_buying_Pok%C3%A9mon_X_and_Y_at_Tesco