You sound like a serious comicbook reader, poweranimals. I don't even know who Kang is.

If I'm being honest, not really. He's been in the animated series Avengers: Earth's Mightiest Heroes and as I said before, Lego Marvel Superheroes 2 which is a video game.

Oh, I gotcha.

@poweranimals said:

They could introduce Kang to fuse the two worlds together. Something similar happened in Lego Marvel 2.

Thats the best and most simplistic idea I have heard but better have all new X-men.

Do Secret Wars. Two universes merged together.

could use the Avengers/X men storyline from either : X men vs avengers from 1987, where Magneto, on the good side, is targeted for his crimes (powerful storyline about redemption, forgiveness) or the AVX from 2012, where the Phoenix entity comes to earth to possess Hope Summers (much weaker storyline than the older one, but insane action, and Cyclops, Colossus, Emma Frost and Magik imbued by the Phoenix powers) I'd bet more on the second one as the next X men movie is about Phoenix.

They could have Thanos defeat the Avengers, everything is lost, Thanos is about to kill half the universe, and the last scene in IW is of Scarlet Witch muttering the words "We need mutants." Then Avengers 4 could be the Avengers and the X-men figthing Thanos together.

@jomarthecat said:

They could have Thanos defeat the Avengers, everything is lost, Thanos is about to kill half the universe, and the last scene in IW is of Scarlet Witch muttering the words "We need mutants." Then Avengers 4 could be the Avengers and the X-men figthing Thanos together.

hmm, yeah, we know in the comics Scarlet Witch can remove mutants from the planet, why not create mutants on the planet ... But as both movies are released in 2019, story for Avengers 4 was already set when the new X men movie joined the MCU

Funny, the Scarlet Witch is herself practically a mutant. Due to contracting, the Marvel Studios writers couldn't refer to her and her brother Quicksilver as such, so a baddie referred to them as "miracles."

Just a point.

movie events has them get powers from Von Stroheim's experiments, but it could have "triggered" their X gene, as they seem to be surprised by how the twins had awesome powers

They got their powers from the Infinity Stone.