We think this may be first offial photo of Redmi Note 4. Person on this picture is noone else then chinese actor Hoaran Liu who not long ago signed contract with Xiaomi as official spokepersone of Redmi lineup it's quite reasonable theory.
Double rear camera is a trent with Asian manufacturers so it's quite logic that new Redmi Note will have it.
Of coure at this moment we can't be 100% sure but it's logic conclusion.
Source: gizmochina