The Alliance/New Republic is winning the war and has taken back Coruscant.
The players are Imperials, who fled into the lower levels of the planet, before they could get imprisoned. NR troops and Coruscant Security Forces are on the hunt for them (and for many other former Imperials, who are stuck on the planet).
Will the players seek revenge for their fallen empire, maybe even become some sort of terrorists (the thing they swore to destroy)?
Will they get along with the local underworld or be betrayed?
What is with their permanent fear of secret agents and potential traitors?
And so on. That's the kinda setting my group is facing.
Everyone is up for it, but some are still pondering about fitting character concepts.
Maybe you have some intriguing ideas