Windows Phone 8 GDR3 update to give you more Live tiles
The upcoming Windows Phone 8 update, codenamed GDR3, is going to come with support for an additional column of tiles, rounding them to 4. To see how it might look like, have e peek at the mockup below done by Windows Phone Daily.
According to earlier reports the GDR3 update is going to enable manufacturers to put 1080p displays in their upcoming phones. So a user interface refresh was in order so the OS can make full use of all the available pixels. Apparently, it starts with the homescreen, which will now offer an extra row of Live tiles. It's unclear if there will also be a fourth size for the live tiles so you can still create edge-to-edge tiles.
Of course, there's no official confirmation of any of the features of the upcoming update so take it all with a pinch of salt.