Since the Announcement by Microsoft that Nokia Devices & Services would become part of Microsoft, Microsoft has been changing the Nokia sites to Microsoft Sites.
In the Last couple of months, Microsoft have already made some NAME CHANGES to the Windows Phone apps. This Work also continues across all the Nokia Devices.
But Now It's official that from now on we can see MICROSOFT LUMIA brand Instead of LUMIA on all Middle and High End Nokia Phones. Nokia Is Licensed to Sell Entry Level Category of phones and continues to produce smart phones with its Brand.