In the next major content patch, the construction of the Crusaders’ Coliseum on the Argent Tournament grounds will be complete, and it will hold new challenges for players. We’d like to share some details on the new dungeon, which represents the next tier of content for the game, but keep in mind that this is still in development and subject to change. The Crusaders’ Coliseum will include:

New epic 10- and 25-player raid dungeon with five encounters, with each encounter being unlocked one week at a time
A more intuitive structure for harder encounters. This raid dungeon will have four different versions: 10-player, 25-player, 10-player Heroic, and 25-player Heroic, with each one using a separate lockout.
Introduction of the Crusaders’ Tribute! Each of the Heroic mode instances has a new tribute system that will limit players on the number of attempts they get in the Coliseum each week to present a greater challenge for the most battle-hardened heroes. Additional rewards can be earned depending on the number of attempts left in the tribute run each week when the final boss is defeated.
New 5-player dungeon with three encounters that will include Champion’s Seals as each one is defeated
New tier of armor and weapons that are modeled with Alliance- or Horde-specific themes

i think that sounds gr8
cant wait

sounds absolutely amazing, scales rewards directly with how well you perform
hard mode progression is completely linear

because the way it work snow is somewhat silly, theres not really any true way to compare guilds who are cleared through normal

one guild might spend 2 weeks doing hard mode iron council, one giuld spends those 2 weeks doing hard hodir/thorim
council is harder, but its earlier in the instance, how do you tell which group is doing better

give whichever mode is harder a ranking