A recently leaked image shows when this new phablet may look like with an updated live tile view spanning across the larger screen size of the home screen.
Other than for the screen size, the Lumia 1520 seems to share the same colorful polycarbonate body from current Lumia devices. The camera hump is interestingly large and a clear evolution from what we first saw on the Nokia Lumia 920 to something similar to what was on the Nokia Lumia 925. The Lumia 1520 is also expected to be the first Windows Phone device to be powered by a Snapdragon quad-core processor..
With rumours suggesting that the next Lumia will come with Microsoft's branding, we are curious to see if it will be the Lumia 1520
source - @evleaks