I saw your post on Reddit, and it looks amazing!
Here are some questions i have (feel free to don't answer some of them if you don't want to)
What engine are you using?
Are you thinking about a plugin system? (mods 'n stuff)
What about 2 screen mode, one DM view and a Player view, so it can be easily streamed and played online?
Player view with fog of war?
Sound FX AI?