I think the name of Season 7 is Advanced Challenge.
The new season will be called "Pokemon BW: Adventures in Unova"
Pokemon Galactic Battles
Pokemon DP Sinnoh League Victors
The official name is Pokemon DP:galactic Battles. It is season 12 of the Pokemon anime.
Arcanine
Yes. May did too. In episodes: Season 7: Episode 3: The Princess and the Togepi Season 7: Episode 4: A Togepi Mirage Season 7: Episode 5: Candid Camerupt "If you ever have any questions about Pokemon you just let me know!"
The Orange Island League
Episode 2, season 7 is called Reunion.
Probably Grey that is if season 16 is after Pkmn black and white
season 7 ep 9
Seasons 6, 7, and 8.
Yes, there will be. Season 13 has been released in Japan on January 7, 2010, along with a new opening that features all of the ledgendary Pokemon, as well as all of Ash's Pokemon.