This reached peak Blizzard writing. Because on one hand it's pretty much precisely what I thought would happen, i.e.:
1. Sylvanas surviving
2. Sylvanas getting reunited with the "good" part of her soul
3. Her decision to go the lol-redemption path being related to her newfound feelings towards Blanduin
4. The raid ending with Zovaal's victory, particularly with him finishing his Infinity Gauntlet
5. Zovaal getting his core back and the reveal that the Arbiter was some kind of usurper.
6. Lol-redeemed Sylvanas being set up to be the next Kerrigan (justice demands yadda yadda, but she's the only one who knows what the Jailer plans next, so she will lead the charge with the power of her new fiery wings blues eyes)
Yet on the other hand it still managed to surprise me with how pathetic, ridiculous and, in a way (not one planned by Blizzard), hilarious the execution of it actually turned out to be.