So early drafts of the Episode 8 script are making its rounds online. Before the spoilers get all over news sites here's the tl;dr of some of the stuff going down.
>This is a Jedi Knight
>And this is what is known as a Jedi Knight that has ascended past a Jedi Knight. Or you can just call this a Jedi Master
>And this...is to go...even further beyond
so Return of the Jedi Palpatine was a body double and the real Palpatine is Snoke?
Ha ha! You thought you defeated me, but it was a doombot all along!