Awesome: Watch Star Wars: Rogue One Opening Text Crawl
Watch the opening crawl used at Star Wars Celebration for the Star Wars: Rogue One panel.
The footage is of the Star Wars: A New Hope opening, but things change when mention of the Rebels stealing the Death Star plans is shown!
I think, in addition to the big spoiler, that this only further exemplifies Star Wars: Rogue One as being a bit more on the serious side.
"Star Wars: Rogue One" has a December 16, 2016 release directed by Gareth Edwards starring Felicity Jones, Diego Luna, Ben Mendelsohn, Donnie Yen, Jiang Wen, Forest Whitaker, Mads Mikkelsen, Alan Tudyk, who plays a performance-capture character in Rogue One, and Riz Ahmed.
Rogue One tells the story of resistance fighters who have united to steal plans to the dreaded Death Star.