Call me pessimistic but I think this is just rumor started by the community until proven true by an announcement.

People just can't believe the areas look that boring.

Personally I'd love it if they re-made every zone though with some actual fantasy elements or something interesting about them. I really don't care if you re-organize the grassy mounds of LL in a different way the setting will still be really ordinary if you don't add something interesting in there.

For reference see --> every singe FF ever made before XIV.