I think that once you are eliminated from a game, you should be able to join a new game and not have to wait for the game you were eliminated from to end (obviously this applies for people without the premium). Some games can last for 2-5 days after you were eliminated.
Nothing indicates that you can, but you can. When I first joined I was kknocked out of a game and watched it for several days waiting on it to end so I could refill my 4 game limit. I happened to be looking at the games available and clicked on "join" and it let me
yeah, the limit was originally 5 games and couldnt join until game ended, then lack made it 4 games but you can join when you are eliminated...which was more reasonable