wrathchild_78 - thank you for bringing this concise list up to the top. I'm happy to share it with the team. I know a number of them are in various stages of development and testing.
We've seen some variations on workers and upgrade times recently, with the new addition to discount events (for workers) and addition of Speed Ups to allow workers to build faster and free up more quickly.
The new uses for generals has also seen a few variations, with the Admiral Yi Troop Tactic and the Hannibal general addition from the University. Sometimes, the team is able to try out changes through these avenues, before bringing them to the mainline parts of the game.
If you're looking to new types of World Wars, I strongly urge you to look for the community announcements posted here and in the DomiNationsPrime Discord channel. I've really enjoyed working with the community to form these for fun no-glory wars!