Well perhaps understanding what I felt was wrong with it. Like Bodhi. I'm insane, wait, not anymore. Then with Saw. He's against the Empire, yet the Rebels need to take him out? I liked the paranoia angle, but they bailed on it. Would've been interesting to the Rebels break out of there. Also with assassinating Galen. The Death Star is built and operational. It's really too late to take him out to make a difference now.
Also, the parts of the trailer with Jyn on the run with the plans and the Tie Fighter at the end of the platform. That would've been a more "heroic ending" seeing them run into AT-AT incoming fire. Really serve to the "heist" plot in trying to get away instead of just action. Then dumb stuff I don't like calling a planet "Jedha" like "Jedi" and "Wobani" rewording "Obi-Wan". Lastly, IMO, have Vader mow down some Rogue One members. Would've really liked Vader being more relevant to the story instead of just fan service.