Hawkeye, in Ant-Man And The Wasp, you can take solace in the fact that Jeremy Renner is already confirmed for both Avengers: Infinity War and Avengers 4.
The rumor that Hawkeye will be appearing in Ant-Man And The Wasp materialized when it was casually mentioned by Showbiz411 that, after Jeremy Renner’s absence from Mission: Impossible 6 was confirmed, he’d be showing up in the sequel.
That’s almost certainly where he’ll be when Ant-Man And The Wasp is finally released on July 6, 2018, too.
The last we saw of Hawkeye in Civil War, he’d just escaped The Raft thanks to the help of Steve Rogers.