Thanks to a NeoGAF user, who were able to discover the greatness of The Ultimate Evil Edition of Diablo on PlayStation 4, which there in Europe, the game occupies about 62. 7 GB, not little. 

Diablo 3 download/install sizes are much higher on the PS4

Diablo III: Ultimate Edition Evil 64Gb

In Stores of Australia and USA, the situation is quite different with the game that occupies 26 GB; most likely the full body of the European version to be found in the contents of multiple languages ​​for text and voices which seem to double the file. 

Remind you that Diablo III: Ultimate Edition Evil will also be available for PS3, Xbox 360 and Xbox One from 19 August.