One thing I really hate, is when you are playing with friends, doing baal runs in a full group, and the time comes to make a new game, and you can’t get in because it fills up so quick.
I think it would be amazing if the game HOST (and only host) could click something that would essentially make a new game, with everyone in the current party auto-invited to it.
In this way, if you found people you wanted to play with, it would be much easier to move between games as required, without anyone losing their spot.
I think it should work for both private and public games, as well as ladder/non-ladder/hardcore/hardcore ladder.