More promotional info is available for WWDC and Mac OS X according to this Newsfactor story. They also speculate about more QT6 announcements despite continued licensing issues:
the company is widely expected to make further announcements regarding its popular media platform during the WWDC. Apple's disagreement over MPEG-4 royalty issues currently is holding back the QuickTime 6 release, but analysts and users alike expect the company will feel pressure to take action prior to the conference to facilitate the software's release.