That's enough for me as I don't believe you have a poor rep on here, Olivia Saturday it is provided she's playing. That leads me think they are on the path of probably Fender, Olivia and Stevie/Rihanna currently.
I wouldn't give Charli it, I don't think she's got the material if if she's got the show but I can see her getting the sub Pyramid slot. Being at her biggest doesn't make her a headliner mind.
I could definitely see a sub trio out of 3 of Charli, Yungblud, Noah Kahn and Biffy with the one that isn't playing other. I know tickets went onto tickets for good in the end but I don't forsee am act that has been booked to play MK Bowl and it wasn't the dearest tickets meaning they won't cost the earth to book, playing lower than sub equivalent.
I think Glastonbury will start to die off if I'm honest, you've got acts that can sell tickets for £75 that would play sub or even 3rd down Glastonbury just for example paying them 150k at a guess for a show. These promoters will just get them to play their own shows and Glastonbury and likes will become just another gig.
I saw them both play at Malahide Castle, Dublin this summer and expected a collab but no joy. Not to say they wont, but I was a wee bit disaapointed they didnt then.