(Though I still have it sitting in the back of my find to do an FK/What We Do in the Shadows crossover lol.)

That would be a big 'yes, please' from me! I've never done a crossover, but I've thought about doing one for Shadows myself. The crazy personalities and the differences in canon would make for a very entertaining story. "Bat!"

I've also thought about a crossover for FK and EVIL. Considering the hold that Catholicism still has on Nick, I think there's a lot of fertile ground for storytelling.