Quote Originally Posted by Eidolon View Post
Heavensward must be installed on the client to access the areas that will be added in Heavensward. If you are planning to log back in on a client that doesn't have Heavensward installed, make sure to log out in an FFXIV: ARR area.
What happens if your an Au Ra. Are you not able to play that character on the other system if you didn't buy both? Or is the Au Ra not considered part of the expansion?