Adding more quests for other background professions requires someone to write them. Most of the folks who are able to write quests are currently busy with other projects.
Of course. I am busy as well.
But nice to know the other professions have not been completely forgotten about!
Personally, I once had an idea for the Explorer, but don't know how good that would be.
It could be using the Santiago cartographer, if there's no collision of interest. Obviously real exploring and charting isn't easily possible, but I was thinking that maps from the 1500s to the 1800s have one thing in common: They could still always be improved on. So the cartographer would give you a list of "points of interest" (maybe geographical features or special locations) and ask you to clear some details should you get there during your travels. It's not worth for him to travel extensively himself for minor details and improvements.
You would then get a notification when you reached such a point of interest, and every time you visit the cartographer again, you can talk to him about the places you've been. Just an easy example: Let's say a point of interest was "The River on Bonaire" and you got a notification when you entered the Kralendijk outskirts. The cartographer would now ask you about the course of the river near town, as that is the detail yet unclear on his maps. You have three answer options:
a) The river leads into a man-made canal going through the town
b) The river comes down from the mountains in a waterfall
c) There's a dry river bed, I haven't found a drop of water
The cartographer would then check his earlier map drafts, notes, other witness reports or whatever (skips one hour) and depending on the correctness of your answer either say something like "I'm sorry, this doesn't seem to add up, it can't be right" and you get nothing, or "Yes, that seems to add up, I'll make sure to include this detail in all my future maps" in which case you get some XP and ideally the map of the island (in my example Bonaire) as it has just been "finished" by the cartographer. Of course, in reality the map won't be any different at all, but it kinda works in the narrative logic and would be a new way for the Explorer to collet island maps. The thing as a whole could be done as a side activity or as a systematic search for all the places and would mostly encourage you to go through "life" with more opened eyes. It would stand and fall with a good selection of places.
2: Something similar to "The Magnificent Seven", possibly set in the village near Santo Domingo. Train the locals in combat, then help them fight some bandits.
Why not mentioning the original Samurais?
Making some use of this village would be great, I've just been there because of the Devlin quest location I'm adding near Santo Domingo. The church interior seems a bit too big for such a village, it's the spanish cathedral interior.