With Phase 4 officially kicking off, the MCU is looking a little different. For one, there's officially an active multiverse now, thanks to Loki and Sylvie taking out He Who Remains over on Disney+. Of course, given the entirely esoteric nature of time and the universe within Marvel in general, it's extremely difficult to pin down exactly what this means and how it affects things moving forward. For instance, is the multiverse retroactive? Is the flow of time strictly linear or was that also messed up in the chaos of the branching timelines? What exactly constitutes an alternate reality and how do you differentiate them from something like the Quantum Realm or an alternate dimension?

Of course, there are a lot of extremely comic book semantics at play here and the answers, if they come at all, are likely going to be doled out in pieces. We've already got some hints of what might be on the horizon with the new Spider-Man: No Way Home trailer, which teased a Doctor Strange spell going awry and causing all sorts of reality warping. And then there are characters like Wanda who were recently revealed to have extremely potent chaos magic powers. There are definitely big things on the horizon, even if that horizon is vaguely defined.