The Doctor will be a woman now... the Doctress.... okay... so it's possible, that SHE can become pregnant.... with Susans mother =)
Not River or someone else.... the Doctor herself will be the grandmother of Susan =)
Aaaaaah, there's so much place to propose....
YOU ARE READING
Weird Doctor Who Theories
RandomJohn Simm returns as the Master? Could Bill might be the new Doctor? Loooooots of Theories ;-)