While you can still do old-fashioned PowerPoints with Office 365, Microsoft is testing a cloud presentation software that’s more like Prezi than PowerPoint.
Right now Sway is in invitation only preview mode, though it’s easy to request an invite. One thing it has done is to stitch together Sway with Bing image search. Bing will read your presentation and suggest images based on the words you are using.
As you add more words, the Bing image search automatically updates.