It appears that this quest is 1 of 6 quests you have to do, all with different names, all doing the same thing. On the right where it lists the next 5 quests (I don't know how to link stuff) it looks like a quest chain. All quests tell you to use the vision of time in Siege of Orgrimmar. If you read each one though the dialog is different. Since we know epoch stones are a weekly quest this quest can be done once a week which is why it appears the chain will take 6 weeks.
The last quest states "This is the last time (or hopefully the last time, can't remember) time I will ask you to do this. Also looking at the last one, you receive 5,000 coins instead of 1,000.
So it looks like the same objective, different quest titles, 6 weeks in a row. Hopefully after the last one, some new kind of chain will start or something else will come of it.
Hopefully my 1st comment doesn't suck too bad. But not a lot of info there yet, and no other comment in all 6 quests had anyone even guessing why they weren't getting the next quest in the chain.