Star Wars: Rogue One Trailer 2 - 14 Major Plot Clues
12. Saw Gerrara Wants Everyone To Hide
He might be a famed warrior and a key element of Jyn's plan - at least that's how it seems so far - but it doesn't look like Saw Gerrara has any faith in the Rebellion. He thinks the war is already lost, "the world is coming undone and Imperial flags reign across the galaxy".
If Jyn is going to him for advice, or to recruit him, she's not going to find much positivity.
It actually feels like Gerrara is going to be limited to a single scene (in which he refuses to help and then probably dies heroically, because that's how these things tend to go). If he's in any more, it might be as a late stage hail mary (like Han Solo returning to battle after leaving), but it definitely feels like he's not going to be around much at all, and that'll only to be to advise against trying to take down the Empire.