For now, Marvel is believed to only be shooting scenes for Doomsday, with the timing of Reynolds' post strongly suggesting he's set to return for that, rather than later down the line. Indeed, some fans are eagerly anticipating a second big reveal of Avengers: Doomsday cast members, perhaps via a second set of chairs, as production continues.

Ryan Reynolds' cryptic Instagram post has ignited speculation about Deadpool's potential crossover with the Avengers in the upcoming Avengers: Doomsday.