Quote Originally Posted by Moonleg View Post
During the 11 crossover event with Shantotto she specifically stated that she plane-hopped. So no, we're not on a thousands-of-years-later Vana'diel.
To add, there's no mention of Altana anywhere in FFXIV (instead, we have The Twelve)... and the devs have confirmed that Vana'diel (or was it Ivalice) is not on Hydaelyn.