Windows Phone's future may involve more than just a few more home screen tiles.
ZDNet claims that the next version of Windows Phone (possibly 8.1) will focus on Cortana, a personal assistant that goes beyond the likes of Google Now or Siri.
The Halo-inspired component is reportedly more of a shell than an app, and would integrate the OS with Microsoft services like Bing.
Also, Windows-Phone.pl has posted what it says are photos of the OS running on a smartphone. They suggest that the previously leaked notification center would reside in a Live Tile, and that users could group-select tiles like they can with Windows 8.1.