Will the Jade vendor persist?
I think the vendors last a week after an event.
The Jade Weapon vendor also has tabs for Fused weapons and Wintersday weapons (the Sclerite weapon vendor still exists on Southsun). It should be safe to assume that as long as you have a ticket, the ability to buy jade weapons will exist for a very long time, if not permanently.
Tyr Sylvison – Warrior
Illyiah – Revenant
Yea its already been confirmed that devs want to keep every item from events preview-able by new players.
Its a good idea for your reason.
Its a bad idea that new players are gonna see how much stuff they have missed out on. Anet you have restored abit of my faith by making these coffers drop everywhere – HOWEVER – More permanent additions would be invaluable atm – considering the lack of skins outside these events.
In my opinion, not introducing permanently achievable sets will only hurt this game down the road.
An official answer on this is needed.
An official answer has already been given. They said the vendor will remain there forever on their live stream.
Perky – 80 Norn Guardian
Soapie – 80 Human Ranger