Well ... your cards are close to your chest on this subject Dantesama.
Settlers is 20 years old as a brand.
I am confident the clue is in your opening post. But 20 what?
I think BB will be setting a quest with 20 parts in it. And each part of that quest will either reward with 20 of a resource or 20 resources for each point gained.
I think the quest will be similar to the Easter Event Quests. We will have to locate articles on a map.
Bring it on ;-)
Best
Nutters :-)
PS Post cut short because of new meds