TF2 needs a boss rush Halloween mode that ends with a giant skeleton boss like in the
Scream Bloody Fortress video
It would be perfect for this year's Halloween event, it's TF2's 10th anniversary, Merasmus could summon them one after the other, then summon the skeleton king at the end, so it'd be like taking a trip down memory lane of all the Halloween events that TF2's had over the years
I doubt Valve would actually do that though considering how they're already working on the Jungle and Pyro update and are already taking a long time with those