They're not playing Wacken, othwerwise they would've been announced already
Why do you think that? The headliner is not always announced in the first wave of bands.
Guns N'Roses as the headliner 2025 was announced in December.
There are always various factors when the announcement comes, for example when the band itself wants to reveal their touring plans or a time when the ticket sales need to be pushed again, especially the Harder and Louder tickets with fewer perks.
