The official Pokémon movie website has updated. Translations follow:

Media Information

Tv Shows:
Sunday September 17th: "The Pocket Monsters Anime Premium 10" on TV Tokyo - Video Message (from Nicole Fujita)
Sunday September 24th: "The Pocket Monsters Anime Premium 10" on TV Tokyo - Message (from Louis Kurihara)

*Note that these are the scheduled air dates, and as such are subject to change without notice.
*Broadcast dates will vary depending on where you live. (some areas exempt)
For details, please see the website of your local TV station.

Source: http://www.pokemon-movie.jp/news/?p=3140