From the announcements:
Coruscant, capital of the galaxy. This globe-spanning metropolis is the home of Emperor Palpatine and countless other beings. It is also the home of countless mysteries, including the location of an ancient artifact of incredible importance…
Fantasy Flight Games is proud to announce the upcoming release of Heart of the Empire, a new expansion for Imperial Assault!
Adventure among the awesome Coruscant cityscape, and face its myriad dangers. Only the bravest rebels dare to operate here, but when it becomes vital to locate an ancient artifact before the Emperor can claim it as his own, you'll set forth on a new, highly replayable campaign of sixteen missions that explore every level of the world, from its glistening halls of power to its grimy underworld alleys.
You'll find three new heroes ready to join the Rebellion, aided by the talented Force user Ahsoka Tano. You'll maneuver through the crowded city, pursued and confronted by Imperials at every turn. And you'll find the Emperor isn't the only major player working against you. The former Sith, Maul, has sent a Clawdite Shapeshifter to pursue the artifact, and any face in the crowd might hide the Shapeshifter's true identity.
Three powerful Force users… and not a single Jedi among them.
Fantasy Flight Games is proud to announce the upcoming release of two new Villain Packs and one new Ally Pack for Imperial Assault!
Maul Villain Pack
Emperor Palpatine Villain Pack
Ahsoka Tano Ally Pack
In the city where the Jedi Council once sat high enough above ground level to soak up the sun's fading light, there are no more Jedi. The galaxy's former self-appointed guardians have been swept aside by Order 66, and Emperor Palpatine has established an order of Inquisitors to hunt down and destroy any who still remain. Even those who simply demonstrated a sensitivity to the Force were at risk of being targeted, and many were captured and sent to a secret installation on planet Arkanis as part of Project Harvester.
As a result, the Jedi have all but ceased to exist, and they have faded even in the minds of the galaxy's citizens, many of whom now view the Force as some "hokey religion." But there are still some who can feel the Force and draw upon its strength. Some still seek to use its power to defend themselves and those around them. Others choose to wield the Force like a weapon that they can direct at their enemies. And when there are rumors leading toward an artifact that may enhance these individuals' abilities to use the Force, you'll find three of the most powerful of them ready to chase after those leads among the streets of Coruscant.
Heart of the Empire Source
Hero and Villain Packs Source