Most people don't know that, while most DSi enchanced games were region locked, the american versions of Pokemon aren't.
This means I can play american BW and BW2 games on my JP 3DS.
With the 3DS, games are region locked, but not the system, therefore, if it happened that american XY games are region-free too, I could play them on my 3DS.
You can tell if a game is region-locked from the barcode on the back of the boxes.
So my question is, does anyone have a pic of the box or knows if the US region games will be region free?