Seeing as there's been a bit of discussion about this on the 2018 thread, I thought I might as well start a new thread for next year's festival.
For the headliner, I'm going for either:
All Time Low (possibly playing Nothing Personal in full)
Neck Deep / Sum 41 coheadline
You Me At Six
Architects
I think the two main stage thing was a one-off, and next year will be a return to the more traditional format with a separate main stage and "pop-punk" stage.