In fact the entire siege of Azure City can be a Wham arc
V running away from the party, being owned by a dragon who turns out to be the mother of the one the party killed 400 strips ago, and then have the same dragon threaten to kill not V, but his/her children. We had no idea V had children!
One spell: Familicide, and one statement: the three evil-brokers lied. V's actions aren't in any way influenced by the soul splice.
Also, the ending to that scenario. Xykon curbstomps spliced V and O-Chul, only for them to get saved accidentally by, of all things, Xykon's Monster In The Dark in a pseudo-Heel Face Turn.
In the conclusion to the fourth story arc, Blackwing, Vaarsuvius' familiar reveals what he saw within the rift: a planet. Not the Snarl, which is supposed to be the overarching manifestation of chaos doomed to unmake the world, (although it's not incredible to discount it still being omnipresent in a way we've yet to understand) but a lone planet.
Shortly after, Zz'dtri returns after having been Deus Ex'd out of the plot for something like 650-700 strips. And then Belkar's newest Linear Guild counterpart shows up and kicks the dog MASSIVELY.
"Disintegrate. Gust of Wind. Now can we please get back to saving the world?"
Strips 825to827. You'll be just as shocked as the Resistance was.