The Burn reminds me of the Great Salt Lake from FF8.

http://finalfantasy.wikia.com/wiki/Great_Salt_Lake

It would be interesting if just beyond this lake lays a technologically advanced city (Garlemald). Maybe they'll tie in the Lunatic Pandora as a means to get to the Moon (which was hinted at the end of HW as where the Ascians reside....so Lunar Subterrane 24-man dungeon in 5.0!!!)

Also, they would be remiss to make a zone like the Salt Lake and not include this as a boss:
http://finalfantasy.wikia.com/wiki/A...l_Fantasy_VIII)