Originally posted by NF_Crenos:

Refresh world biomes?

So when Mistlands comes out I wanna actually have access to the new content on a pre-existing world. However, I have already explored several regions where I have entered this biome.
Will the update "refresh" these regions when it comes out? Or do I have to explore new regions to generate the new content?
Alternatively, is there a console command that re-generates biomes within the game world? Preferably without destroying/engulfing what I have built, but I guess that might be impossible.

there is no console command that can help you with re-generating explored biomes. There is a mod for that. Not sure which but i know there is one as it was discussed many times here and in discord groups.
Maybe you have explored several regions on foot, but you have explored much more while sailing around it. As Nefrarya said: 300-500 meters from you is considered explored and will not generate any new content there. I can see a lot of mess with mistlands due to significant difference in landscape between original mistlands and new mistlands we could see from pictures. I cannot even imagine the transition from smooth to rocky landscape.