I noticed her name in the opening credits, so I was on the lookout. But yeah, I can't recall anything recently that I've seen her in.
There is LOTS of interweb chatter about that possibility.Totally making this up myself but if Mark Harmon is ready to retire the current story is a great setup for it.
Harmon was poised to call it a day and hang up his stitched-logo NCIS cap. But when he learned that his doing so would result in the mothership series as a whole being cancelled, and many people losing their jobs, he entered talks to return in a limited capacity.