An announcement video coupled with a tweet from the official Star Wars account that Rogue One: A Star Wars Story would debut it’s long-awaited first teaser trailer on Thursday, April 7. The trailer will debut on Good Morning America, on ABC, a network also owned by Lucasfilm’s parent company Disney.
Source : Rogue One: A Star Wars Story Teaser Trailer to Debut on Good Morning America | Comicbook.com

