This is not the council you're looking for
It seems like the WoW devs keep on coming back to the "Council" concept -- we had the Iron Council in Ulduar, the great Illidari Council fight in Black Temple and now the Blood Prince Council in Icecrown Citadel.
Tragically, the newest council is a joke. We one-shot it in 25-man with more than half the raid never having seen the fight before. When we think of how much work and fun went into mastering the BT Council fight (and that we had to clear it each week before we could take on Illidan, no raid lockout extensions back then...) it's clear that the one true "Council" in our hearts will still be those four chatty blood elves in Illidan's temple.
We haven't tried the Queen yet in 25-man, since we're still playing with Putricide's bouncing goo bombs. We've got guild groups with both Putricide and Queen down in 10-man, it's just a question of allocating our nine hours a week of 25-man time.