Merycidia (SPOILERS)

[Morningstar1337]

EDIT: As for what other continents there are, there's Meracydia, of course, and the New World to the West (basically the Americas). There's also Radz-at-han, but I think that may just be a large island, similar to Vylbrand. I thiiiink it's somewhere near Mercydia, but I really don't know.

As far as I know there's no equivalent to Australia nor Antarctica.

Well there's a possible Australia analogue right there