The tournament will continue each round with the top player in each group moving forward. So eventually it will come down to the last round with only 4 players max in it. The current round isn't the last round. From looking at a tournament that I'm in, the "Eliminated Round #" lines only get created once a round has started.
I would assume, if there are clear winners in each group, the next round would have two groups of three players and then the last round would just be 2 players.
http://www.chess.com/tournaments/pairings.html?id=26954&round=2
I'm in the top group here with only 3 players, all the other groups have 4. Since this is the 2nd and apparently last rd how can anyone from my group win the tnmt since we're playing 2 less games than everyone else? Also even with 4 players isn't it likely there will be 2 or more winners at the end of this tnmt since the 2nd rd is only 6 games?