Before the time runs out.. please
Is there any indication that they aren’t? They bring back the holiday events every year. Why wouldn’t they this year? Sometimes they even add more stuff to the event. Are you referencing some announcement that wasn’t on the GW2 website?
the last 2 years these achievements were not included and I would really like to see it available this year since anet introudced the f2p
i went and looked up this information for you all . and it is from Anet so that means its official
Here’s a recent quote by Colin:
After the announcement of HoT, many players were concerned that the old game content would be left in the dust. Unfortunately, that is partially true. But Johanson wanted to reassure players that even though there is a lot of focus on the new HoTness, events like Halloween will still continue and patches will still come to the old game. Johanson believes that there will be plenty to do in the old game for free players.
August 31, 2015
http://massivelyop.com/2015/08/31/pax-prime-2015-guild-wars-2-is-never-getting-a-raid-finder/
as well here is the link to that topic posting too
good luck
https://forum-en.gw2archive.eu/forum/game/gw2/Halloween-6/first#post5441420