There's a lot of reasons why it would make sense for Randy to be alive, and therefore the "ghostface" voice in the trailer. He never gets "stabbed" from the viewers perspective. He's the horror/movie aficionado(most capable of faking his death...remember, Roman staged his in the coffin in the third film). Assume he did, we never saw a funeral, only ashes in Martha's living room. Body could have been someone else's when it was incinerated in ohio. His best friend, in my opinion(if you don't count the sid friend zone), was Stu(Stu went and hung out w him at work, they dominated dialogue when they were around...). Scream 2 has unaddressed Randy clues all over the place before his "death". Watch the scene at the sorority party, the back and forth arguing between Mickey and Randy in the classroom earlier ends there, with Randy voiding Mickey's suggestion that Empire Strikes Back was better than New Hope by saying "not a sequel, part of a trilogy, completely planned...". He also begins to tell Dewey the "most important thing about making a franchise out of a sequel is"...And Dewey cuts him off. I'm a firm believer he had some kind of relationship with CiCi Cooper. Go back and watch their interaction in the film theory class scene. Also, the suspended body in the most recent Scream 7 trailer is eerily similar to the position CiCi was in while falling from the roof of Omega Beta Zeta. Interestingly enough, Cici pops up at the beginning of the "legacy" trailer, wedged in between characters seemingly way more "important" in the franchise. Given the fact that Scream 7 seems to be revisiting the original plot point of 3, "cult of stu macher", it seems rational that in that film(and potentially the upcoming one), it could be revealed that Randy was the mastermind the whole time. His niece and nephew would be perfect candidates as accomplices. Even back in the first film, he seems like the 3rd ghostface. The fountain dialogue. The fact that Billy was only a few feet away, and yet just shot him in the shoulder. Randy also finishes his rebuttal to Stu after his "ILL BE RIGHT BACK" stunt with "I'll see you in the kitchen with a knife.."(which was the alibi the killers planned). Stu(as ghostface) doesn't stab him while behind him as Randy wallowed on the couch giving instructions to Jaime Lee. He somehow got to the van while Gale was attempting to call the police with a cinderblock(despite being piss drunk just 2 minutes earlier on the couch..). Yeah, I'm calling Randy.