So the first week sales are in for Heavensward in Japan.

It came 5th on PS4 selling 38,758 and the PS3 version sold 8,729.

http://www.playstationlifestyle.net/...unch/#/slide/1

In comparison A Realm Reborn sold 31,326 for PS4 and 184,018 on the PS3 on its first week on sale in 2014.
http://www.finalfantasyunion.com/new...-in--2456.html

After the poor UK game sales with the Elder Scrolls Online outselling Heavensward. I wonder if the x pack is selling as well as Square Enix had wanted.