Re: How do you think WW will be introduced in Superman/Batman?
I wouldn't mind if it was some media event where Steve Trevor is with Diana introducing her to the media and Lois/Clark happen to be covering the event.
They could get a lot of general questions out of the way. Where does she come from, why is she here? Is she related to Superman etc...
Then something of course happens where she has to protect everyone and cue Clark going into Superman mode and the two meeting.