Is Matty still friends with Swifty? The band could bring her on as guest artist. She’s done it before and she’s a huge fan of the band. That would be a special Glastonbury moment nobody would ever forget. Make it happen.
It will be new music or new dates. The reunion is all about them, they aren't going to share their first comeback gig with a festival. They will be back at Glastonbury, just not next year.