I dont have a mock-up of what it would look like implemented, but I had a suggestion for the main game UI. If there could be a way to incorporate the status of a disconnected player, as far as when they got back into the client, and their progress in getting back into the game, that would help alot of people waiting on a pause for a player to join again. Something similar is implemented in Heroes of Newerth where it will show the percentage of the load that the reconnecting player is at.