Microsoft might launch several range of devices at MWC 2015.

According to adduplex  Microsoft might launch several range of devices at MWC 2015. From mid-range to high ended smartphones. Notice these are unconfirmed information by Microsoft:

RM-1031 looks like an android phone, Nokia XL.

RM-1062,63 along with its variants of 64,65,66,67 seem to have a 720×1280 screen at 5.7 inches which can be a probable announcement at the MWC

RM-1072,73,74,75,76,77 is again a 720×1280 but a 5 inch screen which is expected soon too. 

RM- 1109, 1113 also has 720×1280 at 5 inch which has been noticed at Brazil.

RM- 1099 is a 480×800, 4 inch screen.

Why Microsoft Nokia instead of Microsoft Lumia???

Microsoft will hold a press conference at MWC 2015 in March 2 at 8:30 a.m CET