I'm also interested in the "downshift" idea. It might mean that if raids are similar in difficulty to ICC, that we could start out a raid, all of us boxing in 25 man mode, help get more loot, higher chance of that item we really need, and gear for our slaves, then as difficulty increases, drop down to 10 man to finish it. And the flexible raid lockouts mean that boxers can experiment with killing the first boss in a raid without worrying about getting a raid main saved, you just wont get loot when you do it again with your raiding guild. Awesome!