Sudden idea that got me inspired and made me do this. A concept of Saoirse Ronan as one of the future Doctor's incarnations.
The one with the most powerful telepathic abilities, on Delgado!Master's level with the capability to hypnotize people.
And with such power this version of the Doctor in a way can be like number Seven. Manipulative and cunning person. Though hiding her true intentions behind pretty face and exceptional manners.