That was in response to morons asking to "Buy Legendaries"
So what they meant is X&Y won't have DLC where you could just Buy Pokemon rather than Trade/Capture, and No DLC to buy in-game items..
However that doesn't mean there couldn't be Future Addon Adventures To Expand X&Y since the cartridges are limited on space.
i.e. there could be a DLC expansion which could add in a "Southern France shaped" Region south of Kalos (since Kalos is Northern France shaped) Accessible by the 2nd unused TMV train tracks, that will have new events, the rest of the new Pokemon (since X&Y had very few), a new legendary or more, a new post game story including battles, and since it's an extension of the post game, rather than new Gym Battles and new Elite 4/Championship since your trainer and Battle/Party Pokemon are already max level, instead there could be a World League/Championship to participate in to battle against tough NPCs who's Pokemon could be in the 60-100 level ranges and may include Legendaries on their teams.