There were a lot of threads left dangling after Pokemon X/Y — who was the ghost girl in Lumiose City? What's behind the locked doors in the power plant? Since we haven't been back to Kalos yet, these questions still linger, but Game Freak seemingly had plans to return to the region with two DLC packs until they were cancelled.
Nintendo has previously resorted to legal retribution in cases like this, and Pokemon feels like the biggest leak yet.
This discovery was made by leaker Pory who is still digging through the enormous Game Freak hack that was posted online over the weekend. It's unclear what the DLC would have entailed, but perhaps it would have unravelled Zygarde's story further and taken us to the long-speculated South Kalos.
There's certainly weight to that idea given that leaks yesterday also revealed that Game Freak scrapped plans for a South Kalos portion of the map. Perhaps the region was cut to be used in a future DLC that never saw the light of day. We don't know yet, but Pory has just reached the 30GB Pokemon X/Y staff folders portion of the leak which includes concept art and assets, so maybe we'll...