Q:
Halloween
We won’t know for sure until the update releases, but can take some semi-educated guesses. Other town clothing outfits are bound to your account, not to a specific character, so the clothing costumes will probably be tradable between all your characters. The weapons are referred to as “skins”, and most skins are typically single use items. And I seriously doubt the holiday content will be made for level 80 characters — that would exclude a lot of the population. Guild Wars 1 holiday events had very low level requirements.
So costumes are likely going to be town clothing, not able to be used as aesthetics in combat?
they have a mechanic where you can graft the appearance of one equip to the stats of another… If the halloween equips aren’t just town clothing you should be able to have a halloween look year round… if you have the gems. If they do have halloween equips, but don’t let you graft them… that would be kind of a waste.