I think Raki is more of a conscience for Clare. His situation is almost identical to Clare's and Theresa, slowly humanizing her, and bringing her back from almost losing everything. He's meant as a scale in which to rate herself against, and how far she's deviated from being human. I don't really think anything will become of him. He'll probably train and become skilled with a sword at most, but I don't see him ever becoming anything more than human.

I would really like to see Clare fight more like Theresa. We know she really doesn't have the total power, but after he present semi-awakened state, I'd like to see her almost never use her yoma powers, like Theresa did.

I'd also like to see more of the other top 5 member, the one who could sense yoma power from really far away (I forgot her name already). She seemed to have a demeanor closer Theresa and Clare as of late.

The big mystery is what number 6 found out about the organization, and why it's so important that the Claymores never find out.