After copper, warhorse buildings are coming, however they will NOT be a requirement for stables. They will just be regions that specialize in cavalry and get bonueses. (How gold/grain etc worked before)

Now, past these two, I'm running into a lot of problems with Superchain structures. So.. it could take some time to add beyond this. (next would be salt) I'm actively trying different approaches. Crzyrndm over in the workshop forums has been trying to figure it out as well. Until either he, or I come up with the missing reference to Superchains (or if Jack Lusted ever responds to my PMs) I'll be seeking different methods. (more on that later).

Overlays for Wonders of the Worlds are being added to the Campaign Map. When you hit tab or go into Diplomacy you can see them. Much better, It gives them more meaning. Work in progress though, making custom icons and matching colors takes TIME.