Recently made it to "new world". When will I see new caravan items?
Best ask your questions on the forum https://forum.pixelfederation.com/diggysadventure/
But to answer your question: Use the filters in the caravans to select the NW items, they are available as soon as you enter a new region.
More information about Caravans https://diggysadventure.fandom.com/wiki/Caravans
What do you think?