Star Wars Rebels season 3 got its own panel at the 2016 Star Wars Celebration in Europe.
Grand Admiral Thrawn will be voiced on Star Wars Rebels by Lars Mikkelsen.
Star Wars Rebels season 3 premieres on Disney XD in fall 2016.
The character took command of the Empire’s forces following the death of Emperor Palpatine in the Star Wars Legends continuity, but will presumably serve a different role in the newly-established Star Wars canon.