Believe me or not the director of Doctor strange Multiverse madness says that viewers will see the repercussions of that in this film:
What we could see in Doctor Starnge's movie. Will Tony Stark come back? In the second last story.
They see the repercussions of that in this film, which is really interesting. The continuance of Marvel Studios stories can be so rich, and we’re able to explore it in ‘Doctor Strange in the Multiverse of Madness.’
The director also spoke about the seemingly confirming that Doctor Strange 2 will involve "a journey through different realities in the Multiverse:"
"The first Doctor Strange film really opened up people’s minds, and in ‘Doctor Strange in the Multiverse of Madness,’ we are going to push it further. This film takes us on a journey through different realities in the Multiverse.”
Multiversal travel is in store, but the actor noted this will affect the reality of the MCU as well, saying, "The stakes are real. There's earthbound jeopardy. So, it molds together very beautifully:"
Give a heart to this story, Only 0.57% of legends do it.
Before we move on, A HUMBLE REQUEST.
Therefore, it makes perfect sense for this upcoming film to connect back to Endgame. And, considering how Infinity War, Endgame, and that five-year gap in between, involved hard decisions and trauma, it's time for the surviving Avengers involved to come to grips with it.
Fortunately, Marvel fans won't have to wait much longer to find out. Doctor Strange in the Multiverse of Madness arrives in theatres on May 6.