A user on Reddit (aka automatic red flag, the website) claims to know some background information on Rey, Kylo Ren and a few other characters from The Force Awakens. S/he’s implying it’s from the novelization, and it’s a burner account, so who knows if any of this has actual merit. Take it as you will. (via)
Even they say that Snoke isn’t Plagueis, though.
Got to say that of all the TFA rumours regarding Rey and Finn’s lineage, this one match’s closest to my own theories regarding Skywalker/Solo descendants in TFA: there are none!
Luke is NOT the grand master of a new Jedi Order, IMO he’s been the only Jedi in the galaxy for over a generation, but now as the House of Ren (darksiders who revere Vader and, what little, they know of the Sith) threaten the galactic balance, the Force awakens.