I haven't heard anything on it being the last season. If it was it wouldn't be up to the producers because they would have said something by now. It being canceled would come from the network renewing it for another season and that would be towards the end of the year.
In my experience shows are cancelled either mid season or end of season so if we get past Christmas & the ratings are good the chances are good the show will continue. A good place to keep an eye out for info abouts shows being cancelled or shotend etc. is link
NCIS has such high ratings I doubt they'll cancel it any time soon. Remember that some successful shows have had literally like 20 seasons. They usually announce if a show is going to go out before the season starts. Remember Monk? I never watched it but I saw enough commercials throughout all of last year starting in like September that were saying it was going to end. I think NCIS is pretty safe. :)
Just for the record I'm with everyone else about hoping the end of NCIS is not here. Just kinda curious if its not the series finale then howcome CBS during the commercials says "FIanl three episodes of NCIS" as appose to Final three episodes of the season? Typo?
I've heard that there is season 10 and more in NCIS, they have signed contracts for two/three years. But unfortunately they were not able to extend all of the actors contracts, for example I've heard that Pauley's contract were not extended and we all know about how it goes with Ducky.
Season 9 is not the last season of NCIS. There will be at least 11 seasons, according to Michael Weatherly. Possibly more than that. But they actors have a contract that will last to season 11. So, their will be more NCIS. Horray!!!