>>14383674>downloadIt's not download data under the definition of the word. It's more like a code that unlocks already loaded data for use by the player.
It's more like entering a secret code that gives you Torchic and the stone.
But X/Y can have real DLC. The developers can give you data through the internet of newly created areas or pokemon. In the form of a patch. But anyone who wants to trade with people who have the patch or use any online capibilities would also need to download the patch, much like how MMOs work. It just depends on what Gamefreak wants to do.
It would exclude anyone who doesn't regularly use Pokemon's online capabilities.
But on the other hand, who doesn't have internet access anymore?