I think there should be a big Halloween event, which will start on October 13th and run till October 31st.
This event will include Double or possibly Triple XP, and because there really isn't anything to unlock after you hit 101. There has got to be something for the Survivors and even Jason to Unlock during this period.
My Ideas are:
-Every Survivor gets their own Halloween costume, 2 per character may be pushing it but maybe outfits that can be mixed and matched to whatever you prefer. These costumes could literally be anything, whatever fits each character. Costumes I think are something we actually need, it would be a lot different than a re-colored t-shirt of the clothes we already have.
-A Brand New Jason, I thought that a Headless Horseman Jason would be awesome. His head is a Jack-O-Lantern that glows and when a survivor knocks his mask off, the whole head comes off. So when Jason loses it, he's headless for the rest of the match. I know it's not a real Jason but, I think Gun Media are most likely going to make more Jason's that are exclusive to the game like Savini Jason. So I don't think there is a problem with something that's as silly as this. I mean if there IS going to be a Halloween event, why not go crazy and make a cool ass Jason that fits with the Holiday.
-A New Halloween Map, This one's maybe a stretch, but it's something I'd like to see. Maybe a small town map would fit for this event, decorated for Halloween. The street where Alice Hardy gets killed in the beginning of Part 2 might be a good place for the map to be set, Gun Media can probably expand on that street by making it a sectioned off area of a town. Your Characters are dressed for the part anyway might as well go trick-or-treating. But with Jason on the loose, it will mostly be Trick and no treating. Also because it's a new map, it would be nice to see a new cutscene starter that is Halloween themed, all the survivors are dressed up for a Halloween party around the fire. Could be in a public park somewhere in the town.
That's really all I had for ideas, but other stuff could be changes to the other maps specifically for Halloween. Like pumpkins set up or what I think would be cool is a thick fog that consumes the map making it harder to see Jason. Imagine how scary it would be to see Jason bursting out of Fog when you're not expecting it. Though I could see this being something players would complain about, being that Jason would probably have an upper hand being able to see people when they can't see him. But that's the whole point, it allows Jason to be more stealthy.