And this could have a massive impact on his Endgame arc. Again, you can’t change the past. When Iron Man returns to the past, he’ll know he will soon die, but not when. This detail might make ...

Now, if you take your pen and draw over it ... his first suit in 2008's "Iron Man," which kicked off the entire MCU. One of the main plot points of "Endgame" is time travel.