Breakfast Topic: When are we going to see the rest of the Chamber of Aspects?

I've been killing Sarth for months and, oddly I still enjoy it. Sans the last half an hour which normally involves bickering and the following question: 'What's a raid roll?' repeated ad infinitum. However each time I enter the Chamber of Aspects, I find my eyes drawn to the other still-sealed portals and wonder when they will open. It's clear the Dragonflight portion of Wrath lore is still incomplete and I live in hope these new raids might be tied into patch 3.3 or even the new expansion.

So tell me readers, when do you think Blizzard will start opening the other Sanctums? What kind of raids would you like to see for each flight? Do you think it might tie into the whole Infinite Dragonflight questline or be something to do with the Lich King? What are your thoughts, constant readers?