Square Enix Have Released Some Details On Final Fantasy XIV Content Not Carried Over Into A Realm Reborn

Square Enix have revealed that some Final Fantasy XIV content is not going to be carried over into Final Fantasy XIV: A Realm Reborn. a large number of these are in-game achievements which are detailed one by one in the link. other things include the Gobbue Horn, Guild Marks, both of which are not carried over into A Realm Reborn. Square say nearly all the cutscenes in the game have been reworked and they are working on a way in-which your achievement details will be viewable as character histories and not via the Lodestone.

Source:  Final Fantasy XIV Lodestone