We’re still over a year away from Avengers: Doomsday, but we’re likely only a few months away from production getting underway on the follow-up film, Avengers: Secret Wars. Considering we don’t really know what to expect from Doomsday, what’s going to happen in Secret Wars is even more of a mystery, but that doesn’t mean there aren’t plenty of rumors of who or what we might see. There's also a theory in particular grabbed my attention, as it suggests Thanos could return.
