Hello! Yay Pietro and Sam. Two of my favorites. :)
Hahah yeah I'd imagine so. Bucky just recently got his memories back after aging back up to normal age following the kiddo plot. It's been a big adjustment for him and he'd been staying at the Avengers facility for a little while. I'd be down if Sam ever wanted to try and talk to him since he suffers from like the worst case of PTSD ever lol. Thor will be happy to see the Falcon too!
Bucky won't know Pietro but Thor sometimes finds him amusing when he's not screwing around with his mind. ;) With a brother like Loki, Thor is generally all about giving second chances.