Plot twists are a make-it-or-break-it story telling device in movies. Do it well, and your film becomes an instant classic; fuck it up and and we’re all gonna make fun of you. So, it stands to reason, that the MCU relies on this device heavily. Sometimes, it’s a twist that’s been festering for years like the Winter Soldier reveal or the revelation that The Mandarin is really Trevor Slattery. Again, do it right vs. doing it wrong.
But there are plenty of other twists that are planned in the writing stage and even when they’re filming the latest MCU entry, that get dropped for a multitude of reasons. Imagine how much these would have changed the MCU as we know it today.
It breaks my brain.