Guild Wars 2

So there is this closed gate in Ossencrest Climb(Snowden Drifts) and from the looks of it you can clearly go in but it probably opens with some event.So my question is where does this event start?

This is purely speculation:

a) It’s related to the Living Story events, as there is another similar looking gate/fort in Wayfayer Foothills (near Solitude waypoint)
b) It’s a Personal Story area that requires a Personal story to progress into there, there is a similar mechanic in Blazeridge Steppes for an Ogre Kraal

it’s Living Story related, the structure didn’t exist on the map till one of the LS updates.

My guess is that the new NPCs for F&F will lead us there, probably for a culmination. Not sure an ancient Karka like thingie will fit in there though.