My picks
Nickelodean
Since The Beginning Trailer and the Tall Tales trailer were shown on Nickelodean, I wouldn't be surprised if Activision partnered with good ol Nick to have a skylanders animated series on their channel. With action/adventure shows like Kung Fu Panda, TMNT, and The Legend of Korra; Skylanders would be a cool line up to their saturday morning shows.
The Hub/Huboom
The Hub would also be a great channel for skylanders since a majority of the fans would like to see skylanders right next to Transformers, MLP, Kaijudo, SHS, and other shows on the Hub. And there could more merchandise if Activision partnered up with Hasbro.

Web Series
A web series would be cool to. It allows more creative freedom and no rush in production to make webisodes.