Grommash or Gul'dan?

When asked who the final boss of Warlords of Draenor would be at the announcement at Blizzcon, the Blizzard folks said "Grommash Hellscream." Yet many people noted a bit of sarcasm, or perhaps they imagined it.

The Iron Horde is certainly Grommash's thing. Garrosh basically set things up so that his father would be the one to lead the Iron Horde, and he is the Warchief. In questing, I haven't really seen Grommash, but his presence is still felt. The elder Hellscream died as a hero, but the truth of his life is that really, he was basically a bad person. He embodied everything brutal and callous about the Old Horde. We really only saw him in a positive light through Thrall's eyes, who met him as an old and defeated prisoner of the Alliance. But Grommash's actions were part of why the Orcs found themselves locked up, and during the days of the Old Horde, Grom Hellscream had been guilty of just about every sin you could lay at the feet of his people.

But there's another figure who has a recurring presence throughout Draenor. If Grommash Hellscream was guilty of representing everything the Orcs did, it was Gul'dan who made them do it. Hellscream might be a warmonger and a brute, but he can at least claim to be doing so for the benefit of his people. But Gul'dan will literally do anything for more personal power, and he is the most powerful mortal Warlock who ever lived, and even then, he's probably only less powerful than Kil'jaeden, Archimonde, and Sargeras.

Grommash has the Iron Horde, though, which certainly puts him in a position of strength on Draenor. It would make perfect sense for the expansion to have us defeating Blackhand in the first raid tier, going off to something else for the second, and then taking down the Iron Horde and Grommash once and for all (maybe at Hellfire Citadel?) as the final tier.

But given that we're going to be spending our entire time in Draenor dismantling the Iron Horde, isn't it possible that we're just making it easier for Gul'dan to take control? He's poised to take advantage of every weakness we create.

To get a little into the meta-narrative, the main reason I was sort of disappointed at Blizzard's answer was that this would mean two expansions in a row where a Mr. G. Hellscream was the final boss. Garrosh's version of the Horde (the "True Horde,") is pretty much similar to the Iron Horde, except with green-skinned Orcs. Grommash and Garrosh certainly have distinct personalities, but they're still basically the same archetype of a brutal Orcish warrior. Gul'dan's still an Orc, but he's very, very different in terms of personality. The Hellscreams are intelligent in that they are skilled military commanders and charismatic enough to get a following, but Gul'dan is a brilliant manipulator. To use Game of Thrones characters as examples, the Hellscreams are kind of Tywin mixed with Khal Drogo whereas Gul'dan is Littlefinger.

And given Gul'dan's contacts within the Burning Legion, he has potentially far greater power than the Iron Horde. In the original timeline, he used the Horde to clear away the Draenei, and thus be able to enact the Legion's will unhindered. He's got some more opposition this time, but he's still absolutely a threat.

So personally, I'd love to see Gul'dan supplant Grommash as the true final boss of Warlords.