btw do people still think that was Kate in the last Endgame trailer? seems much more likely that it's Clint's daughter
I think it's Clint's daughter, who almost certainly dies in the snap.
Whatever the post-Endgame status quo is, it will probably involve Kate Bishop being a surrogate daughter for Clint, even if his real daughter is brought back to life. Maybe he still remembers losing his daughter, and ends up being protective of Kate.
Can't see this being much like Fraction's run at all. Renner's Hawkeye is a grounded family man. Fraction's Hawkeye is a bum who can't get his shit together and is a constant source of disappointment to everyone else.
He can very easily be traumatized from losing his family (even if they're brought back post-Endgame), so he ends up going through a divorce or separating from his family because he can't handle the thought of losing them again.
Thus we get bum Hawkeye who's just trying to make good while living on his own. Then at the end of the series, his time with Kate leads to him going back to his family again.