Andy Serkis way back before TFA said Snoke was a new character to the SW universe. Pablo Hidalgo also said he isn't Plaguies and went as far as to say Plaguies is dead and both Snoke and Plagueis are 2 separate characters. You could argue they are spewing smoke but Snoke not being a Sith originally was said in Andy Serkis interviews and Pablo Hidalgos tweets, along with other little details regarding Snoke that ultimately went into the SW canon such as the TLJ Vidual Dictionary.
__________________ "Vader's pulse and breathing were machine-regulated, so they could not quicken; but something in his chest became more electric around his meetings with the Emperor; he could not say how. A feeling of fullness, of power, of dark and demon mastery -- of secret lusts, unrestrained passion, wild submission -- all these things were in Vader's heart as he neared his Emperor. These things and more."
I don't know if any of you follow this youtube channel but he posts a lot of great videos about new Star Wars content. Check out this video and let me know what you think.
__________________ RealistRacism: "Sheevites, much like the Banites, were meant to increase in power with each member. From Lightsnake to Gideon to Azronger, this was supposed to be the case. However, knowledge must've been lost in some kind of Gravid-like incident, as Az turned out to be a mid-tier debater with a sub-par track record, sh!itting all over Tempest's legacy. Sad."
__________________ RealistRacism: "Sheevites, much like the Banites, were meant to increase in power with each member. From Lightsnake to Gideon to Azronger, this was supposed to be the case. However, knowledge must've been lost in some kind of Gravid-like incident, as Az turned out to be a mid-tier debater with a sub-par track record, sh!itting all over Tempest's legacy. Sad."