Originally posted by Trakehner:

Originally posted by eclipse:

undiscovered biomes on your existing map will be updated, but any part of the map you uncovered will not be touched. Straight from the devs

What does that mean exactly? Am I to assume if you have uncovered some Mistlands already that it will stay barren?

Going by what they said, I would imagine if its been uncovered on your map it won't change, but that's guessing as they didn't give specifics as to what it would exactly entail.