These are the four known Old gods of the five that are written about in the lore of Azeroth.
C'thun and Yogg-Saron and the third unnamed old god seems to be imprisoned underneath the depths of Azeroth. Question is, when the last old god will make his appearance. N'zoth is no where to be found and seemingly was able to escape the clutches of the Titans and during this time he created the Emerald Nightmare.
What intrigues me is the following; Troll is the only playable race that existed before the Titans came to Azeroth. But also the only race who refer the titans as the travellers. And if trolls managed to survive during the raging battles between the elements and old gods warring eachother... They are rather stronger than the WoW makers seems to want to depict them. In other words, they are simple beating bags. But it will also explain why the trolls hatred enemy is Arcane magic.
Arcane magic originates from the first Well. A well that was created by the Titans which means that the titans brought Arcane to Azeroth and before that there was none and that is why the trolls still use their magic LOA which is both mysterious and dangerous to other races.
During my small argues with different people and the seemingly comparison between Wowpedia and Wowwiki to get the most out of the lore from both angles I have kind of found a small indication that Aqir, Faceless, Trolls are in possible fact armies of the different old gods.
That brings us to next question, What if the fifth, yet unnamed Old god is perhaps the troll creator? The greatest LOA and the master of their race. How will Darkspear conflict with this old god if it true? Will they turn on their horde brethren to service their old god like the Mantid went to the voice of Y'shaarj?
After all, the old gods weren't in great terms with each other before the titans came. HAving their own citadels where they dwelled and schemed against each other to become the greatest of them. It is even written that the two united old gods C'thun and Yogg-Saron had a war with N'zoth's minions.
That leads to the question, who created the troll race and for what purpose? Were they an army as well like Aqir and Faceless ones? Who were their master? Perhaps the fifth unnamed old god. The only old god that can whisper into their minds and bring them back in unified force? After all, if C'thun or Yogg-Saron could hold control of eachothers minions. Why didn't they try to reach out towards the Mantid? Mantid, a race who served their old god blindly... But perhaps... They could not? Not because of the mist but because the mantid was never created to serve them. They were created to serve Y'shaarj whom is in pieces but not fully dead. As long the Sha roams the land of Pandaria, he will never fully be dead.
And where is the last Titan facility that hides the third Old god? Yogg-Saron was in a titan facility and threw his influence on the guards. C'thun was in a titan facility that he rebuilt with the Qiraji... Where is the last Old gods prison? What might guard it and what might its schemes for release give us?
The question is mainly;
Is the fifth old god the creator of trolls? The master LOA?
How will Darkspear respond to the old god if it true? Will they turn their back on their maker?
What will happen to the night elves and blood elves whom carry the blood of trolls even if they are twisted by arcane?
Where is the last Old God imprisoned and why hasn't he tried resurface yet?