I've no idea what to think of Nakomi.  To be honest, I don't think anyone is ever going to tell us either.  Her purpose is a to be a guide of sorts.  But who, or why she is there to guide Aviendah and Rand in their times of need makes no sense to me at all. 

I've never believed she was Verin.  And I don't buy in to the "Jenn theory' either.  Unless there is a chapter about her or her purpose in the new Encyclopedia, I really think we will never have an answer.

I kind of like this theory. I was always suspicious of how fast she gained acceptance into the group. And before anyone argues that Min and Nyneave don't trust her, think of the Cleansing. Cadsuane made sure she had Nyneave's paralis net and jewelry to defend herself and didn't have her link with anyone either going off her on her own to patrol the hillside. I disagree with anyone thinking compulsion was involved. I do not think Cadsuane can be compelled with her terangreal. So either Cadsuane trusts her, or thought she could quickly stomp her out even with Nyneave's jewelry if she posed a problem during the cleansing, and I doubt that. And Nyneave did give her the jewelry without much of an argument aside from telling her she wants them back when it's over. I don't know about the darkfriend part, or the weaves on Cadsuane's box either, because I was under the impression either Shadar Haran removed the weaves or gave Elza the knowledge to do it herself before freeing Semirhage.