Because of the length of time it takes to run some of the longer quests, such as the current one Dunshade Manor, maybe it would be possible to get a sign up or have at least five to six people for it to open the vortex?
I can say for my part I've really enjoyed running these and think this is an awesome fun thing to do while bored!
Thanks!!
~~If you can't live without me why aren't you dead yet?~~