Hey Randulf22!!
Well first, congrats on stepping out of the shadows to join us in open excitement for CoE!
Second, to answer your question, I think explorations and cartography early on will be a golden trade because traders will not know routes until you route them, adventurers will not know dungeons or POIs until you discover and map them, and all of the world outside the domains will be undiscovered and uncharted as well. Also, if you discover POI that seem super interesting or promising, you could probably draft a map and sell that to a high bidder. It sounds all fun and exciting.
POI = Point of interest.(just in case)