Yes there is a way if your character is Light Side and you want Jaesa Willsaam to be dark then there are 2 possible ways to do so. First, as other have said remake the Sith Warrior an choose dark side. Or if you don't want to like i didn't, then the only other option is to change your alignment to dark side. how to do so, well be this time you should at least be lvl 30. which means to change your alignment from light to dark farm the Black Talon flash point only killing those that do indeed attack you. In This way you earn 200Dark Side points. Then once you have reached Dark one return to hutt MAKING SURE YOU DIDN"T FINISH THE CONVERSATION WITH JAESA AND THAT YOU RESET THE MISSION you will then be able to make Jaesa Dark. Then afterwards you still want to be Light just farm the Black Talon again! Hope this helps afterall I was Light II and since yesturday night to now about 1hr ago i went from Light II to Dark I not only farming the Black Talon but also having my companions do Diplomacy dark choice missions as well which gave me not 200 darj side points while farming the BT but actually 300 Dark Side.

I believe all of us playing Swtor would like to know if in fact Bioware, EA, and Lucas are going to make the next Chapters 5,6,7...etc to allow us to continue our Sage. At least let us know that much. Thank you