That might happen either way. As there's sure to be some people that find out about what Sanguine is. And she'll want to 'get rid' of them. :P Plus there's still the issue of her blood supply. At most, she's willing to give them better accommodations, not set them free or anything like that.

By the way, I don't know if you've realised it yet but being a vampire -has- affected her personality. As in, she was just like any regular girl in the game. But now she's...let's just say a lot more emotionally detached from humans and evil deeds in general. If it wasn't for Oliver, she would have probably handles things a lot less kindly in the village.