This is more just an out the box prediction, but with Trivium and Bullet with big 20 year album anniversaries coming in 2025, I’d not be totally opposed to them co-headlining on the Friday. Both bands get 75/80 minutes each, both play through the albums, few big hits tacked on at the end…I think people would enjoy it a lot.
Whack two BIG headliners on the Saturday and Sunday, then that could help cover all bases.
I don’t think it’ll happen (but both will possibly play), but that’s just an idea that popped into my head.