If this happens we could see a younger Snoke build the First Order as part of events that took place prior to Star Wars: The Force Awakens.
Kylo Ren could easily talk about his own history and reveal a lot about where Snoke came from.
While many were disappointed that Snoke died in Star Wars: The Last Jedi without revealing to the audience his origins or motives, the fact is that Snoke doesn’t need to be alive to for the next movie to give us this information.
Of course, there are numerous ways we could see Snoke again.