In an interview from the set of Infinity War over the summer, the Russo Brothers were asked about the lack of Hawkeye.
The Infinity War prequel comics show a semi-retired Hawkeye, which falls in line with what Anthony Russo had to say about the character in the upcoming movie and after the events of Civil War. As it turns out, Hawkeye had a different response than the others after the last time we saw him.
Renner’s name isn’t even mentioned on the newest Infinity War poster, leading many to speculate about his whereabouts in the movie.
“Hawkeye, coming out of Civil War, is in the same position that Cap and Falcon are at the end of that movie.