Would be surprised to see either Franz or National at R&L tbf. Also, I thought Chevron was meant to be more for dance stuff rather than rock, let alone the self-proclaimed Sad Dads Club. And I say that as someone who enjoyed their Ally Pally show last year.
Tbf I don't think there's necessarily been a few nailed-down rumours for R&L just yet in the same way as there's a lot of ITK stuff saying this act's playing Glastonbury or Download or whatever. I know Foos and Chappell Roan are big rumours on here, but beyond that, nothing seems to have been nailed down as absolutely on just yet.
I was impressed watching the crowd at Reading 2011 on YouTube that they actually seemed to know quite a fair bit. Whether it's the same now, I'm not sure. I went to Finsbury last year and there were definite peaks and troughs... although that's not exactly unique to one band.
I still want a Different Class in full show for 2025 to mark it's 30 year anniversary tbf. Whether it's announced is another matter.