A lot of what I see in the Mystic is the sort of person I'd expect to see in some planetary leaders court. The Advisor is obvious in this. The Makashi Duelist, well, courtiers engaging in duels is nothing new (and the the paragon of Makashi was a Count). The Seer in and of itself isn't a direct link, but if I were a planet's ruler, I'd want to have one around. Here are a few other ideas for specs:
The Prophet: Similar to the Seer, but instead of being about sensing the future, this is more about pronouncing dooms (as debuffs) and blessing (as buffs) as well as no survival and tracking..
The Soothsayer: Not just about advising rulers, but also about sublty bending them to your will. Talents like "biggest fan."
The Ascendant: Palpatine Spec, All about moving up the ladder. Part of it is setting goals and talents that help you achieve those goals. Some fun backstabbing stuff, along with lightsaber skills..
Aside from specs, I'd expect a system on how to set up your own power base, founding a religion/cult, or how to gain influence in various government.