If nothing new were being presented the presentation would have been rejected when the Abstract was peer reviewed. The fact that it is on the schedule is sufficient to tell us something new will be part of the presentation.
How's this for a dream-on-but-it-could-happen scenario:
Journal (with remarkable findings) is published a few days before the conference and Dr. Liau begins conference with 10-minute observation about how the world of brain cancer treatments has now brightened for present and future victims, and how there may also now be a fresh standard of care for other types of cancer as well. Then every other presentation is viewed through a new and hopeful lens.