Since its a graphic effect discussion,
I kinda like the idea if a "page jump" could have a morph attribute to it. in lieu of an immediate switch from on page of shapes to another page of shapes , how hard would it be to "dissolve" the graphic from old image (previous page) onto new image (next page).. ah lah Power Point.
Not sure if visio has this feature already, not sure how it could be executed with coding.
cheers !