Sorry. Just felt like it could use a meme in the title.
So yeah! Sylvanas is planning to head to Stormwind for the "Battle we've longed for." as she told Nathanos Morris. So what battle is it?
I've said, before, I hope it's a manipulation of Anduin and the Alliance to secure Genn or get the war started without jeopardizing her tenuous position with the Horde, but what other battles could she have, there, and what would be the consequences of them?
1) An attack on Stormwind itself. This one is the one most people assume primarily for the assumption that she wants more corpses to make into Forsaken. However, Saurfang, Baine, and Lor'themar would never go along with this plan, especially since the Horde is diminished in the wake of the events of Cataclysm, Pandaria, and Legion. They'd be more likely to rebel against her, or disband the Horde and take command of their own forces. It also doesn't really fit her character, since it's essentially a suicide run and ever since she jumped off ICC she's pretty much done with the whole "Being Dead" thing.
2) An attempt at Peace. She knows Anduin would be down for a peace treaty and all she'd have to do is offer her hand before he'd probably shake it 'til it comes off. Or, at least, he would have during Mists. It's been a while and with the death of his father, supposedly because of Sylvanas, he might be a little reluctant to shake -her- hand. It could be her last "Battle" with the other members of the Horde, convincing them to accept peace, instead of a physical engagement, or a metaphorical legal battle over the terms of the Armistice itself. An earnest attempt at peace would be a neat change of pace and if Genn was present he'd probably try to kill Sylvie during the Peace Summit, which would probably be enough to start the war back up.
3) Some sort of Sneak Attack into a hidden Vault containing the MacGuffin of Undead Immortality and Possible Cure to Undeath. It would have no buildup or previous history, but that's never stopped the Creative Team, before! She could be using her forces to distract the Alliance while she sends Blightcaller and others down into the city's depths to go get the MacGuffin... but, again, this is essentially suicide. Saurfang wouldn't accept the waste of Orcish lives in the hopes of securing a potion of immortality, and Baine wouldn't sacrifice his own people for the same reason. Lor'themar -might-, if only because it'd be amazing magic to study that might give the Belves immortality.
Of these three, I think 2 is most likely. But what reasons do you guys, gals, and individuals of various and indeterminate genders think would have Sylvanas head to Stormwind? It'll be a few months before we get to read the book and find out the truth.
His arms wide! Fists open!