The Nun 2 end-credits scene breakdown: how does it connect to The Conjuring?

gamesradar.com:

Warning! Positively do not open if you're yet to watch The Nun 2 . Spoilers, not Annabelle, inside.

At the end of The Nun, it was revealed that Sister Irene's ally Frenchie had not only been possessed by titular demon Valak, but he was the guy who Patrick Wilson's Ed and Vera Farmiga's Lorraine Warren attempted to exorcise prior to the events of The Conjuring. It's understandable, then, that many have been desperate to find out whether its newly-released The Nun 2 doubles down on the connection. 

There's also the small matter of Sister Irene actor Taissa Farmiga being franchise veteran Farmiga's real-life sister, which makes the idea of the pair sharing the screen even more exciting. So, with that, are Ed and Lorraine in The Nun 2?

Well, yes, but the scene is brief – and wasn't specifically filmed for the sequel. The Nun 2's end-credits scene opens on the Warrens' mailbox outside their home in Connecticut, New England. Using cut footage from The Conjuring: The Devil Made Me Do It, which The Nun 2 director Michael Chaves also directed, it then quickly jumps to inside their bungalow, as the couples' phone rings. 

Someone, potentially a friend of their young daughter Judy's, calls out for Ed ("It's an emergency"), who comes in and answers the call as Lorraine follows behind. Turns out, it's Father Gordon (Steve Coulter), the priest who regularly puts the Warrens in touch with families whose struggles are being ignored by the church, on the other end. The movie cuts to black after demonologist Ed vows he and his clairvoyant wife will help, which was presumably plonked there to tease The Conjuring's greenlit fourth installment The Last Rites à la the Marvel Cinematic Universe.

Eagle-eyed Conjuring Universe fans might