Alliance megagame - a huge board in-person GeoGame

Here's a great example of a map-based, almost realistic, geopolitics/economy multiplayer game. It is interesting to think of how this game could be implemented online. Clearly the video illustrates the animated interactions that can happen when you gather 60+ players in the same room around one big game for a 4-hr play session. Can those interactions be as rich and nuanced when you can only hear a voice or see persons through video? Probably not, looking at the body language in some of those scenes. How much does that contribute to player engagement? Not clear, and certainly an interesting thing to look into.