From what I can tell, WARNING POTENTIAL SPOILERS, there may be a huge crossover happening in Avengers: Infinity War.
WARNING MAJOR POTENTIAL SPOILERS MAY FOLLOW
Benedict Cumberbatch has been cast in the film. Now it's unlikely that he'll be playing Sherlock as that's not a Marvel character.
HOWEVER, and this is speculation based on facts that have been released, back in the 1970s and early 1980s, Marvel published Star Trek comics.
And who did Cumberbatch play recently in Star Trek: Into Darkness but John Harrison, an obscure character from The Original Series that some speculated may actually be Khan.
NOW we cannot confirm this but it would be a MAJOR SPOILER IF TRUE, but it's entirely possible that Cumberbatch may in fact be playing Khan in Avengers: Infinity War, setting up a Star Trek/Avengers Crossover film. With Infinity referencing the speed when you achieve Warp Ten and the War being the one that Into Darkness speculates is on the verge of happening.
This could be one of the biggest media crossovers to ever happen. And if that's not enough Star Trek and X-Men have crossed over in the comics! Meaning this could potentially be a threeway crossover between Fox's X-Men Universe, Marvel's Avengers and Paramount's Star Trek.
As Thanos will have the power to literally warp reality there is no reason that he could not bring Khan and the X-Men into the Marvel Cinematic Universe for a grand showdown. And there's another clue, he has the power to WARP reality. Not only how the ships in Star Trek travel, but also a power that many mutants like Proteus have.
A hypothetical situation could happen like this, since we never see what happens to Khan after Into Darkness or to the original X-Men after the end of Days of Future Past, Thanos may open a hole while warping reality that allows them to come through and into the new film universe.
This is incredibly exciting and again, MAJOR SPOILERS ARE POSSIBLE HERE, but if Marvel could pull this off it may be able to make a lot of money. Certainly DC has nothing like this you say. But wait! Chris Pine plays Captain Kirk and after the events of Wonder Woman, CAPTAIN Trevor may need to ride to Diana's rescue in Justice League but on the bridge of the Starship Enterprise. Wouldn't Batman like to play with all those toys??? And just imagine all the cool things that Cyborg could do connected to a Starship? And what better way to get to Apokolips to battle Darkseid?
These potentially blockbuster moves suggest that neither Marvel nor DC are resting on their laurels and are instead planning something HUGE that will SURPRISE AND DELIGHT FANS.
And if that's not enough, WARNING MAJOR SPOILERS AHEAD, Rocksteady recently teased this:
https://twitter.com/GazDeaves/status/913418759129456640Batman: Arkham Universe?!? Set on the Starship Enterprise with Groot and Dave Batista as they head into space to battle Thanos and Darkseid? IT COULD HAPPEN. PEOPLE WOULD DEFINITELY LOSE THEIR MINDS IF THIS HAPPENED.
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