nXt Episodes

Although this is not yet 100% confirmed, thanks to forum member Toge-oge the Togepi for the heads up, the latest issue of the Pokémon Fan magazine has revealed that another special is set for airing in the US this September based upon the upcoming Pokémon Mystery Dungeon games. Similar to the revealing of The Mastermind of Mirage Pokémon that aired in April, this didn't reveal much. The article states:
We're airing a special episode of the Pokémon cartoon show that centers around the themes of the Pokémon Mystery Dungeon games! That's Right, coming this September, your favourite Pokémon will speak for the first time ever (Except for Meowth of course)
This special will air on Cartoon Network this September. Watch this space for news.