David: Clone
I’m, like, 84% certain she’s a clone, and her “abandonment” was an intentional act to create another hole card, carried out by the same old fellow who had that missing map piece.
I think we see her as a clone with the purpose of letting Palpatine possess a new body. He was successful with one of the clones. The other was discarded on Jakku. We get a remake of the Luke vs Luuke battle from the Zahn novels. So Rey has to fight Reey. Kylo gets to follow in his grandfather?s footsteps and turn good at the last minute and help Rey defeat Reey. But, Palpatine has split his essence in 2. Half of his essence takes over C3PO which is why his eyes glowed red. Emporer C3PO calls down the Starkiller tech from a fully functional Death Star 3, killing off the Skywalker line.
C3PO: It?s against my programming to impersonate a deity, but nothing prevents me from becoming one. His metalic voice transforms into Palpatine?s and we roll credits.