What if Snoke has no body and is actually not a physical threat? He might be holding into Rey with the intention of possessing her body or something like that.
I certainly wouldn't mind a twist on what Snoke really looks like. A kind of Wizard of Oz moment. ("Pay no attention to the Gungan behind the holorecorder!")
So I've heard Darth Plagueis, Kylo Ren himself from the future, Darth Sidious and Darth Vader.
Darth Plagueis seems suitable but after seeing Snoke's appearance, their species are different.
If Kylo Ren/Ben is Snoke then why would he need to go back to one of the low points in his life to repeat the mistakes he made.
Back in Dark Empire, Darth Sidious was able to survive by transmigrating his spirit into the cloned bodies he made of himself. From what I've heard, they were trying to stay away from the expanded universe. Like Plagueis, Sidious looks different from Snoke.
Darth Vader looks like Snoke with the pale skin, the scar over his head and a bald head to go with it. He looks as if he aged over the 30 year period so he may be a choice in this but if he came to himself as Anakin Skywalker 30 years ago then why would he need to go back to the dark side? Why would he need to repeat history or his story? He would know by now that the dark side would bring him instability as it did 50 years ago. He killed numbers of people in order to save Padme and she too ended up being lost. Why would Vader want go back to the dark side?
It doesn't make sense. They wouldn't do any of the weird returning characters that clearly died. It's along the lines of Maul and Boba Fett still being alive: pretty dumb.
Tarkin didn't want to evacuate in his moment of triumph... he blew up with the DS.
So apparently Old Master has the same face markings as Maul. I have to look a little closer.