She locked herself away for 8 days but is it ever revealed what she saw in the sequel
She sees a premonition of her husband's death.
in the conjuring 2 its revealed she saw a premonition of eds death. but Lorraine warren herself never revealed exactly what she saw
"of" seen? Do you mean "have" seen?
One hopes future reference would / will have better guidance. Might be overly optimistic.