I like the old Jaina much for the reason she can bring some great Han Solos into the NR (especially since they can always use more options for shooters), so I added that. I added unique (I don't know how I missed that originally). And I recosted her at 54. This can potentially make for an interesting Dinamic Duo Squad with Kyle, CI, and I think she is now very competively costed.
Originally, I thought lower 50's was too low, because I considered her speed, forgetfulness, riposte, and Niman Style Mastery to put her far above Mara, Jedi. However, Lightsaber assault, block, and cunning really make mara comparable since Mara has more of an initial damage output, so I think lower/mid 50's is an excellent range for Jaina, SotJ.
To know for sure, testing will be needed, but it looks like a great place to start. There are going to be some minis close to her price range she very solidly outcompetes in most situations, but there will be other situations where she becomes very vulnerable. Her problems will come when she faces squads with Zuckuss, force sense, or is low on HPs (due to NSM) or low on force which will take away her offensive and defensive threat to others who attack her when she's based due to her lack of being able to use forgetfulness or riposte.
I am actually really starting to like this mini more and more as we are coming up with some solid options for the smaller detials that is making it an interesting mini and thinking up different situations where she will be very strong or very vulnerable.
Feel welcome to keep the input coming.
EDIT: I changed the force power from reading Forgetfulness to reading Wipe Mind. It is still the same force power as forgetfulness, just named different. I hope that doesn't confuse too many people since so much of the conversation is about the force powers wipe mind and forgetfulness.