So Reddit has a "Kingdom of the Week" feature where you can discuss a particular set of cards. It's semi-interesting, but most people don't really care because you can't have a great discussion of the kingdom until you've actually played it a couple times.
On the other hand, Kingdom of the Week would be an awesome feature in-game. Each week there could be a different kingdom set up that anyone could easily play on. Then the Reddit discussion threads could be a place to talk about the "real" KotW.
Obviously fix up the game client itself first, but this would be a cool feature to implement later on.