One of the Saiyans may die.
Dragon Ball Super: Broly will touch down in theaters this December in Japan. North American's will have to wait until January 2019 to receive an English dub of the film. The cast of voice actors for the movie recently joined the New York Comic Con madness over at Madison Square Garden, and a potential spoiler may have slipped during an interaction.
As reported by Comicbook.com, the English voice actor for Broly, Vic Mignogna, and the English voice actor for Vegeta, Christopher Sabat, entered into friendly banter while the panel for the movie was taking place. Aligning their voices to their characters, Mignogna and Sabat began to take shots at each other as Broly and Vegeta, respectively. Their conversation went as follows (via Comicbook):
Vic Mignogna: (intimidating Broly voice to crowd) "You're gonna die...and so are some other people" (turns head towards Sean and Sabat)
Christopher Sabat: (sneers)(points at actor mockingly) "Uh, YOU'RE gonna die, my friend." (small chuckle)
Vic Mignogna: (Interrupting Sabat when he says 'die') "Oh thank you, Okay, uh, heh... What has to happen has to happen..." (quickly moves on)
It appears that Mignogna nervously tried to play off the spoiler, which points to the death of his character. Broly was also killed during his first appearance in 1993's Dragon Ball Z: Broly – The Legendary Super Saiyan.