I'm not sure where this advertisement came from (it appears to be trying to sell these two shows to the international market), but it does give a sneak peek at another character that will be included in Avengers: Earth's Mightiest Heroes: Black Panther!
A few days ago, Christopher Yost wrote this on his Twitter:
There's some new 'Avengers: Earth's Mightiest Heroes' animated art floating around out there on the interweb. 7 of the 8 members revealed!
We already know about Cap, Thor, Iron Man, Hulk, Ant Man and Wasp. That's six. Could Black Panther be seven? It would make sense if they want to give the show some cultural diversity. Who is number seven? My bet would be Black Widow. I think another female is needed on the team and with Natasha being featuring in Iron Man 2 it makes her the perfect candidate!