The most fan-pleasing moment of the trailer comes right at the end, with the reveal of Ahsoka Tano. Introduced in The Clone Wars movie, the Padawan of Anakin became a huge fan-favourite thanks to the TV show (and later Rebels).
Ahsoka left The Clone Wars (and the Jedi Order) in the fifth season finale, exiling herself after growing disillusioned with the Order (who had tried to expel her), a decision that had a big impact on Anakin and his own growing dissatisfaction with the Council. This, then, is their reunion scene, and perhaps one of the last times they'll see each other again as friends.
