A couple of days ago a rumor came out from a New York Times writer who said that Disney would be airing the Star Wars Rebels premiere movie on ABC with an additional Darth Vader scene.
Today the Official Site confirmed the news, and James Earl Jones will return:
The critically-acclaimed epic adventure Star Wars Rebels: Spark of Rebellion will air on ABC on Sunday, October 26 (7:00 p.m. ET/PT). Executive producer Dave Filoni states, â€œWe wanted to do something special for the ABC broadcast. Weâ€™ve added a scene which gives audiences insight into the Inquisitor and includes a cameo by Darth Vader voiced by the distinguished actor James Earl Jones.â€
It’s likely something like a holo-call the Inquisitor makes after being informed of the Rebels, but it’ll still be cool to see Vader back. We expected to see him in Rebels, based on the toys including Vader stuff, but not this early in the series.