At the end of Season 6 Ziva decided to stay in her 首页 country & return to Moosad (sp?). Last weeks premier of Season 7 showed Tony, McGee & Gibbs saving Ziva & bringing her home. I do believe she indeed returns to 海军罪案调查处 (as per the directors interview regarding her return)... but tonights new episode is called Reunion so its sounding pretty good to me.