Ziva would have introduced DiNozzo to Tali eventually.
"The real question is, why didn't Ziva tell him sooner," Glasberg said. "Because, like Orli says, Ziva always wanted Tony to live his life. You all know Ziva as a fiercely independent character. We truly believe she was planning to introduce him to his daughter when the time was right. Should that frustrate and anger Tony? Of course, it should."
"But, he also knew Ziva well enough to understand. And, at the end of the day, look what she's given him. A new sense of purpose. A new chapter. A new beginning. A new love. We knew it would take something enormous to make Tony put down his badge. Tali is that very special something."