Does anyone know when this event will start again? I and some friends are looking forward to getting the Obsidian edge. But we need the materials and we cant get those till the event starts. So i was curious if it ran on some sort of schedule or if it was just random.
The wiki page for the event tells you when the event has run in the past. You can extrapolate from that.
Grey Havens seems to cycle events slightly faster than Three Rings did. So you might adjust your extrapolation accordingly.
Unless an employee of Grey Havens chimes in, that's all we know.