10 Theories For How Deadpool Could Join MCU

10. Cable's Time-Travel Device Is From The Ruins Of The New Avengers Compound

In Deadpool 2, Cable managed to travel back in time to the present day where he clashed with Wade Wilson after attempting to ensure the desolate future he hails from never comes to pass. The sequel never really delved into how he managed to master time-travel, so that gives Marvel Studios the opportunity to tie both that character and Deadpool into the MCU.

Kevin Feige no doubt wants to work with Josh Brolin again after the work he did playing Thanos in the Avengers movies, and it could be explained that Cable utilised one of the time-travel devices once used by Earth's Mightiest Heroes in 2024 after recovering it from the ruins of the New Avengers Compound.

This would actually make sense in a lot of ways, playing into the idea of a Marvel Multiverse and merging timelines in a way that means the Deadpool franchise is seemingly added to Marvel Studios' shared world. It ultimately depends how in-depth Feige and company wants to go with this, but this one simple way of tying Avengers: Endgame to Deadpool 2 would help effortlessly combine worlds.