Originally posted by ESOS:

I'm waiting for full release but I'm creating new world and build a new base there so when the update is live I can just play right away.
I just build and didn't explore the map at all also I find a location close to the Altar, I hope it didn't ruin my old save and I still get the updated content later when the update is live.

Went on the Public test with my Char and World ( Yes I made backups ;-) ) . My pre mistland world had explored only the starting Island and to a 2nd Island where the plains are. Went out with a ship to search for the Mistlands and had no problems. Now I`m exploring very carefully there, many unfriendly things.