Zoom into slide to use it as canvas
It should be possible to use a PowerPoint Slide as big canvas and then zoom into it (as an animation) to go more into detail of an object or section. This would be extremly useful combined with (more complex) diagrams / graphics (like SmartArt) to visualize (complicated) structures in a clearer (and cooler) way. Similar to Prezi, but PowerPoint should use both techniques (slides and canvas, in the form that slides are still the main elements but you can use a slide as canvas where it makes sense) and combine their advantages.
Yes, like PPTPLEX!!!!! Bring it back!