Is there anything specific you're looking for?
Generally speaking, the world is so far one continent I believe, separated by four kingdoms, which correspond to the four courts of the tarot suites; Court of Swords to the south in a South Asian tropical jungle, the Court of Coins to the north(I don't believe their region was described), the Court of Wands to the west in a desert region, and the Court of Cups to the east in an island setting I believe.
The four Courts have a royal family of sorts modeled after the royal suite of the tarot minor arcana; King, Queen, Page, and Knight. They are not gender specific. From what we've seen, cities tend to follow suit in structure. Although there are monasteries that might as well be cities, and the same with military outposts.
Primary races of the courts are dwarves, genasi, humans, and half-orcs, although half-orcs are usually slaves of mostly dwarves, but also humans.
There are gnomes and yuan-ti, but both are in a current state of being endangered species I believe as a gnomish civil war almost wiped them out while yuan-ti have been slow to rebuild for centuries.
Both live in a valley, the Xu Lin Valley I believe(not gonna lie, been a while, may not remember the names correctly) which lies between the Courts of Swords and Coins and is currently serving as a DMZ although both sides are building up to claiming it.
I think that's a decent, generalized, non-spoilery summary. Anything to add or correct @AdamKoebel?