Originally Posted by
composemail
There is an event Horizon approaching whereupon Sylvannas becomes a greater threat than she is an asset to the Horde. She knows it and the other Horde leaders know it. There's nothing to be done about it, though, because at the moment the Horde needs her and she needs the Horde. Sooner or later the last part won't be true, then the Horde is in trouble. This is basically, I think, Sylvanas' long-play strategy.
Any Warchief is in a really pickle when it comes to undercity. The longer they are left to grow, the faster this event horizon approaches, and the bigger of a problem the forsaken will be when they inevitably are enemies. However, betraying the Forsaken isn't an option, because it would leave the Horde devastated and weak to the Alliance. The later this inevitable conflict is postponed, the more devastating an impact it will have upon the Horde if they succeed at all.
The only right strategy is to betray the Forsaken several years ago, a good time to do that would've been during Wrath. As soon as the tide turned against the Lich King, the Horde should have turned on the Forsaken and exterminated them. Pin wrathgate on the entire Forsaken force as the excuse, and take advantage what was otherwise a high point in Horde Alliance relations in the shadow of a powerful common enemy, and in light that both the Horde and the Alliance were too engaged with the scourge to wipe one another out. Considering that the Horde would probably lose Tirisfal Glade without the Forsaken to defend it, they'dve been best to offer it to the Alliance in exchange for a peace treaty which respects the Plaguelands as part of Quel'thalas.
Too late now, though. Now the Horde is stuck on a ride they can't get off. Every gain they get from being allied with the increasingly powerful Forsaken is meaningless in that it will inevitably be taken from them by the Forsaken. The Horde's best-case scenario is that the Alliance helps them take out Sylvanas and are merciful enough to not just follow through and take care of the Horde afterwards. Alternately, the Forsaken might assume control of the Horde and not assimilate it, in a similarly generous move. If either the Alliance or the Forsaken are as ruthless as they normally are, the Horde loses either way.
Basically Thrall's notions of honour doomed the Horde. He was right to ally with them, but he should have betrayed them when he had the chance.
---------- Post added 2013-05-06 at 07:45 PM ----------
Oh yeah, or this. I forgot about this. The problem the forsaken present is their endless growth due to the Valkyr; they are themselves pledged to Sylvanas. If Sylvanas and/or the Valkyr can be destroyed, then the Forsaken no longer present the inevitable doom they currently do. Of course, a suitable successor would need to be found- a tough ask because the Forsaken is built around a cult of personality surrounding Sylvanas (deliberate on her part, I would guess). So either Sylvanas would need to be taken care of quietly and laid to rest with full honors, the Valkyr are taken care of with or without her consent but she remains in power, or someone bigger and badder enforces a 'change in management'.