First of all, I must say that i am a huge ncis fan (I love Ziva !), and i don't want to piss off Tiva & Ziva fans.
But I sure would like to know everyone's opinion on this.
Ever since, she got her american citizenship, there is almost nothing she adds to the show (an idle character). Her relationship with Tony is not going anywhere, plus we will meet with her new boyfriend in a couple of episodes.
I personally think that her arc on the show has ended. It was amazing to see her as a spy, a new addition to the team, we all witnessed her skills and betrayal to the team (with Rivkin, at the end of season 6), and then she came back and became an agent. What else she can bring to the table?
I think that it will be good to see a new female character. I was happy to see E.J Barrett (I sure hated her, but it was nice to see Gibbs watch her closely, like an eagle watching its prey) .
Sorry that i couldn't gather my thoughts very well, but i am sure everyone can understand what i am trying to say here.