The Stars Wars galaxy contains trillions, if not quadrillions, of advanced, intelligent beings. Every conceivable sub-culture exists somewhere.
One show I'd love to see is one that looks at all the infighting after Return of the Jedi. I'm not sure what the established canon is of that time period, but I feel a show that looks at the struggle of the Rebel Alliance to remain united following the defeat of the Emperor, and the rivalries between the remaining Imperial high command would be great. On the rebel side, you'd have some systems that want to go back to being independent, while others want to maintain the unity of the Republic. Meanwhile, some Imperial commanders would want to keep fighting, others try to carve out their own mini-empires, and some go off to join the resurrected Emperor and eventually coalesce into the First Order.