I personally reckon there is a heritage name billed top line if they have Coldplay, Dua, SZA headlining. Pulp or Stevie Nicks is my guess.
if I was a betting man for pyramid heads/subs
Coldplay / LCD Soundsystem
Dua Lipa / (Pulp or Stevie Nicks)
SZA / Burna Boy
Doja Cat, Kasabian, The National as other headliners. Although wouldn’t be surprised if we get Catfish instead of Kasabian.