Sienna Miller Returns For GI Joe II?
 

Interesting. I wonder if she'll get put back under CC's control and become the Baroness again, or if it's mental break kind of thing.

Or it could just be something like: "Duke, honey, remember to call me if you're going to be late. I don't want your dinner to get cold. Have fun playing war. Say hi to my brother while you're there. Oh, and try not to kill him so we can have another sequel. Love you!"