The Future of Live Tiles

Looking at the leaked builds of Windows 8.1 and the new tile sizes I've been wondering what is the future for Live Tiles on Windows. I mean right now Live Tiles function as both icons and Widgets, in as far as displaying information, but what should they do in future? If you look at some of the recent Office lab videos you see them use Tiles like mini apps or launchers taking you into a program.I wonder if that will be the future for the Tile metaphor, to become both more of a widget and maybe more of a mini application. Imagine pressing and holding on a Tile and one of the sizes allows you to run the app without ever going to it from the Home screen. So what do people think, what is the future for Live Tiles