You know this has been suggested before and it is always shot down by one question. Why do we need this?
When do you ever actually look at the lobby of a server? You don't. You see the selector in your hand, you click it, and you leave. The only reason you actually look around the lobby is if your a noob or simply bored. I don't see the need for this at all.
I see what you are saying, but recently sitting in the lobby adventuring is the only think I have been doing. If a new lobby was added, we would complete all the bored people's minds.