Watch: The Snoke Darth Plagueis Theory
While Andy Serks may or may not have stated Supreme Leader Snoke is not Darth Plagueis (yeah, we're not buying that, either), check out a video above going over the potential clues that the new bad of Star Wars: The Force Awakens is the same Sith Lord that trained the Emperor.
A good point made in the video right off the bat is that Snoke has apparently suffered some sort of head trauma. We know that the Emperor has said he killed Plagueis in his sleep, which might have been with a blow to the head. So if Snoke is Plagueis, he obviously survived the attack somehow.
Some more evidence is that the John Williams music scores for the characters also line up exactly.
I actually wouldn't mind Snoke being Darth Plagueis as it would be a nice way to tie all the Trilogies together.
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