Why not increase the party size to scale to a 1 tank 1 heal 6dps party and have content difficulty equally scale to the extra dps. I think this would reduce que times and prepare heal/tanks to raid heal the high end elite content. This would not be a requirement as people can progress normally as a 4 party duty or can select an option for the suggested 8 man dungeon set up. Perhaps an incentive to doing 8 man is doubling the loot chests.