I'm not sure, they aren't giving any headliner in that format 2hours and Foos would have at least 2. I wouldn't say Reading is likely for them next year either. If they are as said going big on a tour with stadiums and festivals then the UK is once place they can definitely do stadiums and that would rule them out. And that's even if they come back for a second UK stint as I fully expect them in Europe from very early. That could be seen as hyperthetical but there are is some places I cannot see them not doing from history.
One problem could be that many of the hospitality packages are already sold out. Unless you’ve a media contact, media organisations normally get a hospitality allocation.
I agree on WA taking a year off in 2027. But if they got the call from R&L could see them having a similar August to what Fontaines are doing now. A few random shows + 2/3 other festivals. The festival/LN does seem to love them as well so there is a chance they take a punt.
I did see about Rodrigo potentially doing a stadium in Poland but no clue if that would be 2027 or 2028, I just can't see her at the Fest at all, seems too big in current climate.
If I were to guess the headliners next year I'd go with Fred Again/Foos/Capaldi/Olivia Dean/Biffy or Wolf Alice/Some Rapper, Tems?