Yup, these last few chapters really did a wonder for Saki. And judging by her responses here I think that she will slowly start to open toward others and be honest about who she really is. I know that her mom, Rinne and Ayano already know and already accepted her. I think their friends in school as well as teachers will also accept her as she is.
Only one who can give her hard time regarding this is Kanon's mom (and again it's a big maybe), and then again it will not be over who she really is but regarding her relationship and possible future with Kanon.
The moment Saki realize that she never had any enemies is the moment when she will truly be free, and it will all be thanks to almost deaf girl who was able to accept her as she is.