The renewal announcement of NCIS season 18 hasn't been made, so viewers may need to wait for a while. Yet, the renewal is highly likely given that the series is one of the most popular shows on CBS. There are still a lot of interesting stories worth-exploring and it's exciting to see where the characters will go moving forward. But the question here is: Is everyone coming back?

It remains to be seen whether or not we'll see the whole team get back in action once NCIS season 18 arrives. But based on the finale of the previous installment, there is no indication that anyone is leaving. It should also be noted that production halted and the remaining episodes that weren't filmed will likely be added next season. Hence, there's a huge possibility everyone's coming back in the future.

Moreover, most of the cast members still want to continue being part of the series. For instance, Sean Murray previously shared via Twitter he'll probably be back in NCIS season 18. And while there's a concern over Maria Bello's Sloane's future as the actress signed a three-year contract, she just recently revealed via Instagram that they'll come back, referencing the series' future.

In addition, the upcoming 400th episode will also be a big one for Mark Harmon's Gibbs and David McCallum's Ducky. This proved to be an interesting episode since McCallum doesn't often appear in each episode. So, although nothing is confirmed at the moment, it seems like most -- if not everyone -- is coming back in NCIS season 18.

As from the potential return of Cote de Pablo's Ziva, nothing is confirmed right now. The character returns in season 17, wherein she appeared in four episodes. But will fans see a Ziva and Tony reunion in NCIS season 18? Executive producers Frank Cardea and Gina Lucita Monreal discussed this matter and whether a reunion may happen at some point.

While Cardea said the previous season brought closure to Ziva's storyline, he said that this may not be the end for her in the series. He added that he'd love to explore the character more in the future and want to find out where Ziva and Tony are. Monreal then said: "There's always more story to tell." This likely implies that a Ziva-Tony reunion is in the works.

The renewal hasn't been made, but CarterMatt noted it's usually announced with Mark Harmon signing a new deal. Thus, viewers may need to wait for a while, though there's no reason for concern when it comes to the future of the show. A lot of stories will still be explored in NCIS season 18, and the good news is that the ratings remain strong.