Epiphany time, I think variks will unite the houses during this threat and become the Kell of the House of Judgment. The fallen are after the traveler we all know that by now, maybe at some point in the story of TTK variks and the queen will make an alliance with the fallen houses, and because the city won't have an option, we will have to fight along side them. Who knows maybe we will have our own squad of fallen soldiers to help us overcome our mutual enemy. The enemy of my enemy is my friend. Here's to hoping!