I really think she’s going to go down fighting.
I think something will have happened over the summer, and they will have gotten together, at least somewhat, and the premiere will bring them back, fighting side by side. Then Ziva will go down. And it will break Tony.
And the season will be about him getting revenge for her death, and it will close with his closure and that of the team. Because Gibbs cannot loose another daughter and be okay, marine or not. And Abby cannot lose another sibling.