Related: Marvel Knows It Messed Up Thanos In Infinity War (& Hawkeye Proves It)

Hawkeye episode 3 subtly suggested Hank Pym is stepping in as the man who pays for the Avengers, and provides them with technology. In one scene, Hawkeye pulled a Pym arrow from his quiver, firing it into one of Kate Bishop's arrows to enlarge it to giant size; the giant arrow then fell down into one of the Tracksuit Mafia's vehicles, destroying it. Hawkeye could only have gotten that arrow from Hank Pym - and it's notable that it bears the logo of Pym-Tech, suggesting Hank has taken charge of his old company once again and is using it to give Clint Barton specialist equipment. It's reasonable to assume he's doing the same with other Avengers, too.

The Avengers don't seem to exist as a formal organization anymore, but there are signs a new group of Avengers is forming - old established heroes like Captain Marvel and Bruce Banner, who are liaising with one another and assessing potential threats. Hank Pym would be an ideal member of this team; he's technically the most experienced superhero on the planet right now, because he was active during the Cold War as the first Ant-Man, years before Carol Danvers became Captain Marvel. He's also well-suited to the Tony Stark role, although his technology is very different to Stark's - hence a Pym arrow.

There is, however, a certain degree of irony to Hank Pym taking Tony Stark's place in the Avengers. There was bad blood between Hank and Tony's father Howard Stark, so much so that in Tony Stark's funeral - and Hawkeye suggests he's giving Tony a legacy by continuing his role in the Avengers.