This theory Just occurred to me. Nothing groundbreaking as to how it starts:
- Snoke is Darth Pagueis
- Snoke manipulates midichlorians to create Anakin
- Snoke is almost killed by Sheev
- Snoke only re-emerges once Sheev is dead
- Snoke manipulates midichlorians to create Rey
- Rey winds up in new Jedi academy
- Snoke thinks Rey is killed in Ren massacre
How about even taking this theory even crazier:
5.5. Snoke created Rey as a sleeper agent to assassinate Luke