Remedy's Quantum Break was a massive draw during Microsoft's Gamescom press conference, with it opening the show (more on what was shown and announced here). It wasn't only gameplay that was revealed, we also got to see the new boxart, since the main character has been altered since initial previews.
You can take a look at the new boxart below (left) and compare it to the old one (right). As you can see, they've also increased the projected PEGI rating to 18 years. Quantum Break will be released for Xbox One in April next year.