Is there anyway to view the maps of Heavensward before release?

[kyuven]

How do you know?, on both places there will be "sanctuarys" so there will be pupulated placed. We arent sure if Dravania is human inhabitaded and the floating islands too.

Dravania has been at war with Ishgard for centuries. In war, there is a dire need for info, so the Isgardians will likely have up-to-date records.
Those same Ishgardians closed off their country during the Garlean advance, so no one of note has been through the gates of Ishgard in over a decade, and even before that they were pretty secretive and closed off.
Sanctuaries will exist, of course, because Aetheryte usage isn't exclusive to our corner of Eorzea. I wouldn't be surprised if Doma and Ala Mihgo have a bunch too.