Scene Exit Animation - "Scene Expands" or "Zoom Out"
I'd like to suggest a scene exit animation. It would be useful to have a "Scene Expands" or "Zoom Out" transition between scenes where Scene A is completed, then the video appears to Zoom Out --- Scene A shrinks into the center or one of the corners of Scene B. Users could select the location the scene would shrink into, what percentage of the original size it would shrink down to, as well as the amount of time that the transition would occur over.
It would allow for one scene to appear as though it was just the starting point for a much larger and continuously created whiteboard doodle.
Zooming into or out of the final scene could make for some pretty cool final scene exits, too.