I’ve seen a lot of people calling Saurfang a coward for wanting to depose Sylvanas and yet leaving the Horde rather than challenge her. But honestly, I disagree.
For one, I think Saurfang knows that Sylvanas will eliminate any risk to her leadership in the Horde as soon as it shows up. She already willingly slaughtered her own people in Before the Storm simply because a few wished to desert. She would do it for even less to the other Horde races.
He would also likely know she has no issues resorting to blackmail, as seen when she extorted the blood elves into aiding her in Northrend.
Secondly, I think Saurfang doesn’t wish to challenge Sylvanas, either in Mak’gora or some other form of leadership contest, because he does not want to lead. I do not think Blizzard is building him up to be warchief. The guy wants to die. He carries immense guilt over his actions and likely believes himself beyond redemption. He only wishes to ensure the younger members of the Horde do not walk the same path.
It is a theory I’ve seen before, and one I believe most right now, that Saurfang is looking for Thrall. He escaped to the Swamp of Sorrows, rather than, say, Stranglethorn Vale or Menethil Harbour, either place he could have stolen or stowed away on a ship to Kalimdor. The Swamp of Sorrows is right next to the Blasted Lands, and therefore the Dark Portal. After WoD, the portal is likely linked back to Outland; how else would Thrall have gone back there in the first place? And Trollbane had to come back to Azeroth somehow.
I believe that at the end of the expansion, Sylvanas will have been exiled from the Horde, to play a part in a shadowlands related story, and Thrall will return as warchief to finally end the constant changing of leadership.
And in all of this, I imagine that the Alliance will play the role of Saurfang’s sidekicks who ask the Horde to peacefully pull back all forces from Arathi Highlands as compensation for the Burning of Teldrassil. Maybe this time we’ll get to use the robotic cat to spy inside of Orgrimmar and not in the miserable camp outside.
Nah; personally I see Trollbane conquering Arathi after the warfront and rebuilding Stromgarde for the Alliance; meanwhile Darkshore I think will be lost, blighted into inhospitability like Undercity was, with the night elves moving to Mount Hyjal, which is a strategically superior location anyways.
Anduin may see this conflict as Alliance vs Sylvanas, but those heading the war effort are going to be more than happy to put the Horde into the ground, regardless of Saurfang.
Thing is that Orgrimm Doomhammer and Thrall was creating the Horde, to challenge world monsters, to not repeat the same mistakes Old Horde did before, to save small races, and to have a home without a war.
Sylvanas betray the reasons New Horde was made for, and turn Horde back to the Old Horde. Now, when Azeroth is dying, she began to conquer other nation lands in this barbaric war while doing genocide. In fact she is making world more weak, doing what Legion wanted to Horde do, why Legion made Horde for at the first place.
So Saurfang is not just trying to save the New Horde, he is also fighting against pure evil to save the world.
This will be unfair. How often the NE get kicked in their as*? Now they can’t even have one single win? That’s just ridiculous…
The Night Elves would have won in that scenario, which is why the forsaken will end using Scorched Earth tactics. But from Hyjal, the Nelves will be sitting in a easily defendable mountain, with a nice elevated view of Orgrimmar to pelt hell down on the Horde. This is where the Goblin cannon will finally see some use.
But Hyial is a cenarion circle base nowadays.
And this has stopped Blizzard when? We know they like to disregard continuity.
Sorry, but you are mistaken if you believe that the Night Elves will go anywhere or there will be any meaningful events happening in Kalimdor after 8.1. 8.2 is about Azshara and Mechagon and 8.3 is about N’zoth. And judging by how Battle for Azeroth is doing right now, I doubt that there will be patch 8.4.
8.3 will be finishing off the faction warfare. N’zoth is 8.4. There is absolutely zero chance of the faction war taking a back seat to him until it’s over and done with.
Because blizzard wanted conflict in the Horde and a big bad for both to unite against to forgive and forget.
Basically lazy writing.
In the trailer Lost honor, he says he didn’t kill Anduin because he hoped he would beat Sylvanas and thus save the Horde, so he haven’t abandoned it, he just tried to save it in a different way.
Which makes no sense since there is a bloody thing called Mak’gora.
Which Blizz concviently forgets.
This is the current developers’ team’s favoured tactic 
Vindicaar? What is that? Warframes? Naaah, can’t remember them being any useful! Mak’gora? Never heard of it! Continuity? What a joke! Character development? Is this a legend?
I can totally identify myself with the views of Saurfrang.
Sylvanus is :
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Extremely selfish as she knows if she dies she goes to a void hell dimension
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Thinks she’s a queen and above anyone while she was just a forest general and has no royal blood. Except the blood of a royal fool.
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Short-sighted and again selfish enough to kill anyone who would disagree openly with her ways.
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Has literally no honor or being a respectable leader : creation of blight, killing Horde troops, killing her own Forsaken because she didn’t want them to meet their human families again. Killing innocents in general, such as the Night Elves in BFA.
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Just like Nathanos : has a disgusting plot armor.
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Has an edgy fanbase who can’t see reason
I just hope she dies and we get a real Horde leader tbh
Afaik she have royal blood.
I’m not too sure about that
But I was wrong before… so…
The Windrunner family was a prominent high and half-elf family the last time I checked, without any connenction to the royalty
Sure, every Quel’Dorei is royal in a way or another, Highborne --> High Elf, but…
Maybe she drank some royal blood?
The psycho-corpse…
Nope.
She is a Windrunner. She is/was a part of one of the most powerful and influential families in Quel’thala but that’s it.
And even if she was somehow related to Sunstrider dynasty, it doesn’t mean a thing for Lordearonian line of succession.
If we go by the standard medieval law of rule, then Calia is the rightful ruler and Sylvanas is a foreign usurper. Being “chosen” by the people is not how kingdoms work.
… Or… If Arthas had a son, then this son would be the rightful king of Lordearon… I heard a fun theory about Anduin the other day …
Yeah, the names of her organizations are real crimgy. Royal apothecary society & she calls herself Queen? Well, but I think it fits for forsaken standards 
You had my curiosity … but now you have my attention