Considering she masters every ability that supposedly takes years of practice in the first attempt, it would have to be a very good reveal.Palpatine makes sense, but how old would he have been if he had her, and who was her mother? A clone of Palpatine makes more sense, with obvious changes as to hide her (his) true identity.I still think it'll cut back to the bit where she's offered to sell BB-8 and it was all a daydream. She thinks "F that!" And sells him. Roll credits.