https://www.cnet.com/news/chris-evans-my-avengers-tweet-isnt-confirming-caps-death-avengers-4/

Russo also acknowledged that the events of Infinity War may have surprised and upset some viewers, but noted that it's his job and that of brother Anthony to "surprise them, and to make difficult choices in the storytelling."

He also noted Avengers 4 is "about halfway through the editing process" and is currently a whopping three hours long.