Quote Originally Posted by Mirage View Post
No, it only uses the name "Ivalice", just like several other Final Fantasy games have used the name "Gaia" for their worlds, without them being even remotely linked to each others.

Also, where are you from, Guardians?
I'm sorry, but I may have to disagree with that: Ivalice - Chronologie

You'll see that they also link to a japanese site, for reference. Given some things that FFT, FFTA and FF XII have in common, some being spoiler material, it doesn't surprise me in the least