No Halloween event?
https://www.guildwars2.com/en/news/upcoming-events-in-guildwars2/
“Later in October, we’ll be bringing back our famous Halloween festivities! Blood and Madness will be returning to Guild Wars 2 on October 21 and remain active until the return of Season 2.”
Nov. 4th is when just when Living Story returns. Holiday events are no longer considered part of Living Story as they aren’t related to the story narrative, so they simply aren’t included in the LS-specific previews.
They’ve already stated we’re getting a Halloween event later in the month. Next week in fact.
I suggest you check information before you post assumptions in future! Like Donari has posted, there was an official statement already giving the Halloween event a release date
ArenaNet Communications Manager
Please do review the website so that you can post accurately. There will be a Halloween event, as mentioned in the link post by Donari above.
Communications Manager
Guild & Fansite Relations; In-Game Events
ArenaNet