So going off what we have:
This obviously refers to Magni. I don't think anyone can dispute that. Are they referring to him becoming a "pawn" of Azeroth as her speaker, or (more likely) is N'zoth whispering in his ears and pretending to be Azeroth herself?The king of diamonds has been made a pawn.
This is again fairly obvious. It refers to the five Pillars of Creation we've set out to collect. If the Pillars were used in the shaping of the world, including the cages of the Old Gods, then it would only make sense that they are capable of opening the prisons as well.Five keys to open our way. Five torches to light our path.
My theory on this one is that it's actually referring to Illidan, who was killed and is now somewhere out in the Twisting Nether with his immortal demon soul. My guess would be that it isn't referencing a literal drowning, but something along the lines of being surrounded by stars, similar to how you are surrounded by water while drowning.To find him, drown yourself in a circle of stars.
Fairly certain this is Anduin. It says he lies to you, which is out of character for him, but to be fair it never says he knowingly lies to you. My guess would be that the whispers are referring to things like hope, peace, and prosperity as lies, which are all things that Anduin strongly believes in and attempts to pass on to the Horde and Alliance both through various means.The boy-king serves at the master's table. Three lies he will offer you.
Fairly certain that this one is Jaina. Theramore was her heart and has been turned into a literal crater. In addition, the hole in her heart has now been filled with hate. I fail to see how it could be Azeroth here, because the hole in Azeroth is filled with her own life-blood, which created the Well of Eternity, and this itself was shaped by the Titans so I doubt that this is what they're referring to.Her heart is a crater, and we have filled it.
As far as I'm concerned, this is Khadgar. Medivh himself hasn't been seen or heard from outside of random bits of lore in comics in a long, long time. Ravencrest doesn't really make much sense since he comes to his senses at the end of Blackrook Hold, and I don't really see any other "lord of ravens" around. The whole "Gilneas is city of ravens" is such a ridiculous stretch, honestly. At this point, it's the city of wolves. Khadgar is the one who believes the Pillars of Creation (the aforementioned keys to opening the way) are the answer to stopping the Legion, and it would only make sense that he would accidentally open the way for N'zoth in his haste to stop the Legion invasion.The lord of ravens will turn the key.
This is just a reference to the Curse of Flesh, because technically N'zoth is our "creator" since his Curse is what caused us to form into the races we currently are, when it comes to Human, Dwarf, and Gnome. Orcs are from another planet, the Elves are evolved from trolls, which were a natural life form, and the Draenei are called space goats for a reason. Perhaps the Tauren are descended from the Tol'vir in some way, but I think they're just referring to the current races that were once Titan-forged.Flesh is his gift. He is your true creator.
As for our newest quote, I still believe this is referring to Sylvanas. However, I'm not talking Sylvanas on the whole, but rather Sylvanas specifically as the Banshee Queen. If we refer to Sylvanas specifically after her rebirth as a banshee, she has only died twice in her current form of "life", which means that there is a possibility she may die a third time.At the hour of her third death, she ushers in our coming.
/tinfoil time here boys.
Magni is being strung along by N'zoth to connect with Khadgar and have Khadgar find the Pillars of Creation so he can unwittingly open the prison of N'zoth to the world. Anduin will try and preach about faith and hope and all that, which the Old Gods consider to be lies as they believe that chaos and death are the truths of the universe. Khadgar will be the one to open the way with the Pillars, and my guess is that somewhere along the way Jaina and Sylvanas come into conflict because of Jaina's hatred and mistrust of the Horde after the Broken Shore. This will end in a situation where Sylvanas willingly gives her life for Khadgar to be able to use the Pillars, and in that moment her death will usher the coming of N'zoth. Because we can't have Warchief Musical Chairs going on forever, this noble sacrifice will lead to Sylvanas gaining control over the Valk'yr and thus her redemption and the continuation of the Forsaken as a race and she will use her newfound powers to help combat N'zoth.
[Edit] An important thing to note is that during the War of the Ancients, the Old Gods were trying to use the portal in the Well of Eternity as a way to escape their prisons as well. Azerothian magic combined with Legion portal technology has been a potent combination before that could have released the Old Gods, had the Dragon Soul not been taken away from the Well. This is the same potent combination: the Pillars of Creation from Azeroth combined with the portal at the Tomb of Sargeras, consisting of the fel energy of the Burning Legion. The same circumstances are in effect as they were the last time their prisons were nearly unlocked quite by accident.