a decent article for anyone not sure on the deleted/alternative scenes, shots just for marketing, dialogue that was in the trailers - but not the film, cut cameos and other characters, early drafts, etc…

‘Everything Cut From Rogue One: A Star Wars Story’:-

http://io9.gizmodo.com/everything-cut-from-rogue-one-a-star-wars-story-1794051677

and this article - along with video - of all the scenes and dialogue that didn’t make it to the final cut of the film:-

‘All the Footage From the Rogue One Trailers Cut From the Film’…

http://uk.ign.com/videos/2016/12/20/all-the-footage-from-the-rogue-one-trailers-cut-from-the-film

^ the comments section is worth a read too for extra pics and info