Pokémon Black and White. It's already happening (about 40 episodes in as of November 2011), actually, and features Ash traveling along Iris and Cilan.
Pokemon Sinnoh League Victors is Season 13.
sinnoh league victors
sinnoh league victors
...on television?
Pokemon DP Sinnoh League Victors
Roughly 15.
June 5
yes
The season that is after Pokémon Diamond and Pearl: Sinnoh League Victors is the season that is titled "Pokémon Black and White" which takes place in the Unova region.
The latest is Pokemon: Sinnoh League Victors.
Yes on the final episode of sinnoh league victors to become pokemon doctor
Yes; the current season is 13, Sinnoh League Victors.