I'm all for turning Ashara but i don't think shocking will turn her as many poeple have suggested.
I think that in later Expanisions bioware should either 1. Let us turn her or 2. Have her be a kind of redemption option from the darkside. I mean sure shes been hinting that i should really turn to the lightside. Next Expansion i say have it so we have to choose between killing her or to keep romancing you. For example maybe she turned on use from talking to Zash for to long, and try to kill you for power and title just like every other Sith and their apprentice. We all know that Xalek is going to turn on us sooner or later so way not Ashara who is techically one of our first apprentices.
Plus if we ever get another romance option you can ditch Ashara if you want
Well thats just my opinion.