https://www.guildwars2.com/en/the-game/releases/november-2012/ The Lost Shores, a massive one-time world event that will change Tyria forever! Sounds interesting i think this is how most new areas will be announced and played
You get boosted up to level 80 for the one time events 16th-18th 8pm GMT can bring free-friends aswell.
So yeah, the big 3 day new content reveal, the events are bugged so you can't do them, who'd have thought! =)