After six years of consecutive harrowing Team Fortress 2 Halloween events, Valve took last year off to work on its then new Invasion update. It seems the same is true this year, as the developer is instead "working on something even better."
Similar to last year, every prior Scream Fortress event will briefly return—including 2015's Merasmissions—while a new Pyro Pack, improvements to Comp Mode, a new update, a new campaign, community maps, and a new taunt are but a few of the things TF2 is introducing to ensure All Hallows' Eve doesn't pass us by.