"Look, it's Star Wars, so you never know how life, or whether life can be come back to or not," he admitted to Slashfilm. "Whether you can be resuscitated or brought back."
"I was shocked," Serkis continued, referring to Snoke's death at the hands of Kylo Ren. "Dramatically, it felt absolutely right for that moment in the film, so I didn't question it. I just think it's a very, very important scene, so I didn't question it. But I do, I know it's left fans feeling like, that they were really searching for something there. And what I'm saying is, who knows?"
He also mentioned that he hasn't yet spoken with Episode IX director J.J. Abramsn about the possibility of Snoke's return.
There is some precedent for dead characters reapping in Star Wars movies, particularly as Force ghosts. It's also entirely possible that Episode IX may employ some sort of flashback featuring the character.
Written and directed by Rian Johnson, Star Wars: The Last Jedi stars Mark Hamill as Luke Skywalker, Daisy Ridley as Rey, John Boyega as Finn, Adam Driver as Kylo Ren, Oscar Isaac as Poe Dameron, Andy Serkis as Supreme Leader Snoke, Domhnall Gleeson as General Hux, Gwendoline Christie as Captain Phasma, Anthony Daniels as C-3PO, Lupita Nyong’o as Maz Kanata, Benicio Del Toro as ‘DJ’, Kelly Marie Tran as Rose Tico, Laura Dern as Vice Admiral Amilyn Holdo, and the late Carrie Fisher as General Leia Organa. The film is in theaters worldwide.