personally i think she will retain them, the fact that her name is a direct reference to number 9 is not a hazard, plus the womb curse is in reality a cloning processus with a link to the original prietress, what was exorcised was the link with the 1 priestress that can manifest sometime, the "dark smiling" that can appear with kaya, like with the visit with the grandma.
but the body, the vessel that is supposed to sustain that power is not exorcised and that the baby was originally a cursed womb mean that she hold potentially great power without hajime lurking in the soul of the baby.
the creation of a cursed womb and a prietress is the same, the real difference is the lenght of the pregancy and the outcome that you search.