It is a Great Movie which is BEST movie of my life. It has a great story and Perfect acting by the Actors and Actresses. All the Casts-Sister Irene by Taissa Farmiga, Father Burke by Demián Bichir and Maurris " Frenchie" Theriault by Jonas Bloquet are now the Best Actors for me specially Jonas Bloquet and more especially Taissa Farmiga whose both acting and minute actions on face touched my Heart and the acting of Demián Bichir is also regardable.
This can be the plot for The Nun 2.
After 20 years of the fight with Valak, Father Burke feels something demonic in Frenchie and being on bed for old age, he cannot fight with Valak again so he recommends Sister Irene to take Frenchie to his friends Ed and Lorraine Warren in London.This could be the bridge between The Nun and Conjuring.Maurris saved the life of both Sister Irene and Father Burke many times. Sister Irene risks her life for Maurris and take him along with a demon inside him, Valak to Warrens . From here another fight behind with Valak and a difficult one with two objectives, one to defeat Valak and second to save Maurris' life. When it is done by the Warren's along with Sister Irene, Frenchie is finally saved.
Sister Irene took a temporary Oath to become a Nun in which the Nuns are allowed to think that whether they can give their whole life to God or not. Sister Irene chooses to not to become a Nun and to start a new life with Maurris.
I hope that Film Makers read and understand this as it is a Great Concept.