Rogue One: A Star Wars Story was not a movie that ended well for most of its characters, but now the fate of another, who was never on the planet's surface, has been revealed. Everybody who goes on the mission to obtain the Death Star plans dies, though they are successful in transmitting the plans off the planet. The mission itself only came about because Jyn Erso and company went against orders, because men like General Draven didn't think it was a good idea. Now, we know what happened to Draven after the movie ended.
The current Star Wars comic book run takes place in between the first two episodes of the original trilogy and is currently focused on an infiltration of an Imperial ship by Princess Leia and General Draven, among others, in order to obtain yet another collection of Imperial data. Draven has changed following the events of Rogue One: A Star Wars Story and is now more willing to not only allow risk in service of the Rebellion but as the new comic, #54 shows (h/t to ComicBook.com), he's also willing to risk his own life. The Rebel force attempts to escape the Imperial ship by stealing a TIE fighter, and Draven makes the decision to stay behind in order to help everybody else escape.
Staying behind puts Draven up against Darth Vader, which goes about how you think, making him the latest casualty among the characters that were introduced in Rogue One: A Star Wars Story. While General Draven, played by Alistair Petrie in the film, wasn't exactly a fan favorite in the movie, his continued presence has helped to connect the comics to the films and continued to show how Rogue One is having a significant implication on the larger Star Wars universe.
In the comic itself, Draven even makes reference to Jyn Erso and the fact that he has apparently been jealous ever since she became the martyred hero and he was just the guy who was wrong. Now, he gets to be that hero.
In the end, one way or another, pretty much everybody who was in Rogue One: A Star Wars Story that doesn't appear later in the original trilogy needs to find their way off screen one way or another and considering they're in the middle of a war, death is going to be the most likely option for everybody.
