There's a new novel from Christie Golden coming July 25, about an elite Imperial squad and their mission following the events of Rogue One and A New Hope. Here's the official description
The Rebellion may have heroes like Jyn Erso and Luke Skywalker. But the Empire has Inferno Squad.
After the humiliating theft of the Death Star plans and the resulting destruction of the battle station, the Empire is on the defensive. In response to this stunning defeat, the Imperial Navy has authorized the formation of an elite team of soldiers, known as Inferno Squad. Their mission: infiltrate and eliminate the remnants of Saw Gerrera’s Partisans. Following the death of their leader, the Partisans have carried on his extremist legacy, determined to thwart the Empire — no matter what the cost. Now, Inferno Squad must prove their status as the best of the best and take down the Partisans from within. But as the danger intensifies and the threat of discovery grows, how far will Inferno Squad go to ensure the safety of the Empire?