From his own blog:

Greetings,

All of a sudden, it’s summer in Los Angeles. We’ve had near-100 degree weather the last couple of days. The weather’s even hotter in Valencia, where we film NCIS, so I think our hiatus couldn’t have come at a better time.

Yes, Season 6 is a wrap. We celebrated the end of the season (cast, crew, post production, publicity, a few guest stars, etc;) with a wrap party this past Saturday. It’s one of the few times that everyone connected with the show has a chance to get together. Lots of hugs, handshakes and plans to hang out during hiatus. Pauley Perette introduced us to a great Italian restaurant during the season, so a few of us plan to meet there for dinner during the break. It’s great to work on a show where you want to spend time with each other away from the set.

Some of you have asked about the Season 6 DVD and if there’s a roundtable discussion included in the set. I’m happy to report that I took part in my first roundtable discussion with the cast, and hosted by ET’s Kevin Fraizer. It was informative, funny (Michael Weatherly was there, so of course it was funny), and sometimes emotional.

Michael will be appearing at Telefilm Festival in Milan, Italy on 10th May.

If you are in the area, come see Michael! [Schedule]

Question: Rumors are flying that Michael Weatherly won’t be returning next season on NCIS. Please tell me that it is not true! — Kristen

Ausiello: Michael Weatherly isn’t the one you should be worried about.

Source: here.