Among the many topics NCIS fans are buzzing about in the second half of the current Season Seven is the potential romance for Gibbs that producers have promised.

Asked about that possibility recently, executive producer Shane Brennan cryptically teased that “There’s a scene coming up that will stir up a lot of conversation.”

“Mark [Harmon] is at his finest in that episode," he continues. "The audience is going to love it, but they’re also going to go, ‘Oh my God - what’s happening?!’”

As for whether the story involves Rena Sofer’s character, he says only that they "started laying the bread crumbs" and it will be "one of the big moments on NCIS.”

DiNozzo, Gibbs and McGee are all the subject of fan speculation.

On an unrelated note, Brennan said that on the Tony and Ziva front, this week's episode, "Jet Lag," should answer a lot, and viewers should "read between the lines."

Safe to say that we already did! The only question is where Tiva goes from here, and the impression we were left with Tuesday is that even they don't know that yet.

Which is probably just how it's supposed to be with this complicated couple.

Finally, regarding rumors that Abby and McGee might be reuniting, all Brennan would divulge is, “Something begins to happen [with them] later in the season.”

We can't wait to see what. Any theories on Gibbs, Tiva and/or McGee?

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.