It would be interesting if we could solidify the connection by creating a new vision shot of Snoke standing over the stone wayfinder chest that could be inserted into one of Kylo’s visions.

You could take the shot of Snoke in TLJ when he says, “A new… Vader.” Recolor his robe gray and change the background to a pink/gray sky to match Mustafar. And by intercutting between this shot and the stone chest insert, you could imply Snoke once stood before this relic, either on his own quest to find the secrets of the Sith, or to lay the breadcrumbs that Vader’s grandson will eventually follow.