i think he was talking more about mistland then new dungeons in the mountains.
but yes. the game generates new things as you explore. so it's likely that you'll get updated mistlands (and mountain dungeons) only in unexplored parts or new world.

ok thx i'll waiting so

as the game will only change the map in the mistlands you can use console commands to genarate the new content into you're old world just like we did with the plains and the new tarpits

you will only ever need to start a new world if you are unlucky and they dump new content in and it genarate's into you're base.

and commands for this is = GenLoc

Originally posted by Slynx Jewel:

i think he was talking more about mistland then new dungeons in the mountains.
but yes. the game generates new things as you explore. so it's likely that you'll get updated mistlands (and mountain dungeons) only in unexplored parts or new world.

all spawns dung boss locations and traders will be in the same place for every seed with the same name there is no random gen beyond the seed name

you can use a map genarator where you put the seen name in and it will show you every detail of you're map where the boss locations are and the 3 possible locations the trade can spawn it will also show you where every iron mine troll cave and skelly den is located because they are not random.

Originally posted by FuFo Mortucus:

Originally posted by Slynx Jewel:

i think he was talking more about mistland then new dungeons in the mountains.
but yes. the game generates new things as you explore. so it's likely that you'll get updated mistlands (and mountain dungeons) only in unexplored parts or new world.

all spawns dung boss locations and traders will be in the same place for every seed with the same name there is no random gen beyond the seed name

you can use a map genarator where you put the seen name in and it will show you every detail of you're map where the boss locations are and the 3 possible locations the trade can spawn it will also show you where every iron mine troll cave and skelly den is located because they are not random.

It only generates them the first time you go to an area. If they add something new to an area that is already generated, it won't be there.

From the October dev blog https://steamcommunity.com/games/892970/announcements/detail/3061877729280651185:

It’s also still too early to say what the implementation of the Mistlands will mean for your existing worlds, but we will keep you updated once we know more.

Originally posted by Species1571:

Originally posted by FuFo Mortucus:

all spawns dung boss locations and traders will be in the same place for every seed with the same name there is no random gen beyond the seed name

you can use a map genarator where you put the seen name in and it will show you every detail of you're map where the boss locations are and the 3 possible locations the trade can spawn it will also show you where every iron mine troll cave and skelly den is located because they are not random.

It only generates them the first time you go to an area. If they add something new to an area that is already generated, it won't be there.

i have my intire map explored
i live in the plains i had no tar pits and used the console commands to place the new content in on my map .

all POI are predetermend weather you have been there or not only in the case of something new it needs to be told to genrate in the new loc world hence the advice i gave about useing the console command GenLoc.

it does not matter if you have been there or not all that matter is will is ruin you,re base when you genarate the new content in if you have explored ya map already which many have already done.

It is still uncertain. My guess is that it will be the same as Hearth & Home with the tar pits, you will still get it in your old world, but only for areas you haven't explored yet. And it won't be a new biome, just an expansion of the existing mountain biome.