Doctor Stranger in the Multiverse of Madness did a lot of things (for better and for worse), but one of the most “grand-scale” things that it did was not just note that the multiverse was a big and diverse place (kind of…) but that there are dangers to going and traveling in it. Key among them being the threat of an Incursion, where two universes basically collide and destroy everything.
Producer Richie Palmer did his best to showcase how what happened in the movie is indeed going to have an impact on things to come:
“As our friend Reed Richards tells us, an incursion occurs when a being from one universe travels to another and causes a big enough footprint,” Palmer told in an interview. “You can’t go to another universe and start stomping around and making big waves. If you do, it’s going to mess up the whole balance of the Multiverse, and it could destroy one or both of the universes entirely. The magical connection between those two universes should not be messed with.”
This wasn’t the first time we’ve heard of this either:
“Strange went to the Multiverse and tampered with it as much as you probably possibly could. I don’t think it’s any surprise per the rules that Reed [Richards] laid out that he caused an Incursion,” writer Michael Waldron explained before. “So now there’s an oncoming collision of universes. But what does that mean for the MCU? We’ll find out. But we’ve got a semi-corrupted Doctor Strange and Clea on the case! So it’s going to be a lot of fun.”
Indeed, and this would seemingly be one of the “big threads” that Kevin Feige was teasing in terms of the upcoming “main story” of the MCU going forward. But we’ll just have to wait and see on that.
Source: ComicBook.com