-Done. Done, done and done. OH, maybe Aria and Yerbol can intercept a segment of that Task Force sent to the peace talks. They can get mistaken as a part of the task force and branded as criminals along with them? That way Bracknell sacrifices a small part of his task force in order to, you know, overthrow the entire Jedi/Sith spectrum xD 

-And wow, yeah, that would work for the second part. Once Yerbol and Aria free themselves(and probably get some info from Bracknell's yuppies), they can visit Korriban in an attempt to see what has become of Aria's father. They can hit Korriban, find Aria's father maybe and then...well, I think a major choice would happen. With both Empire and Jedi at each other's throats, I think that Yerbol would want to save as many as he could that wanted to get away from the carnage. This might be a good point in the story for the duo to start rescue missions from both Tython and Korriban. How would Aria feel? Essentially everything they both knew is imploding, so no choice would be easy xD

-And yeah, maybe instead of Yerbol and Aria breaking out themselves, Aria's father springs them...that might work.