Highly unlikely but Rilo Kiley are getting back together for a festival in the US this year, would love to see them on the bill (or over here in general)
I'm a big fan of Sam Fender. First saw him in 2018 at a tiny venue in Leeds (capacity around 150) and seen his popularity grow and grow. Seen him six times, most recently last month. I would love for him to be there.
That said, judging by the reaction to him being announced as headliner at Rock Werchter and Nos Alive, his UK popularity does not appear to translate into mainland Europe so I'd understand if others don't share my enthusiasm.
As for Confidence Man, they're such an entertaining act that I defy anyone to not be delighted by them being announced!