Nokia Lumia 2520-1520-Front

Microsoft is expected to unveil the long-overdue Windows Phone “Blue” update sometime in Spring 2014 alongside a refreshed version of Windows 8.1, but that may just be the beginning of a massive cross-platform overhaul coming in 2015. According to ZDNet’s Mary Jo Foley-an expert when it comes to breaking Microsoft news—the company is already working on an update to help unify Windows, Windows Phone and the Xbox UI, allegedly codenamed “Threshold.”

According to Foley’s sources, Threshold isn’t a single upgrade, but a wave of updates coming in 2015 to Microsoft’s mobile, PC and gaming operating systems. Threshold will reportedly increase the number of shared UI elements across the three platforms, and may even introduce a unified app store. Specifically, the coming wave of updates will bring “high value activities” from Office to IT management to all of its software.

Before then, Microsoft is expected to finally deliver an update to Windows Phone 8 sometime next year, introducing multi-tasking, a notification center and a digital assistant allegedly codenamed Cortana. Nokia is reportedly already developing two new smartphones—codenamed Goldfinger and Moneypenny—which could be the first devices to run Windows Phone Blue when it launches in 2014.

Source zdnet