Magni Bronzebeard

As of 8/15/17 the quest [quest=46835] should of popped up when you logged on. If it did not or you lose the quest you can speak with [npc=90417] in the Violet Citadel
Once you accept it, run to the middle of [zone=7502] take the teleporter down, and run to the portals.. take the Wyrmrest Temple portal.
Now fly over to the Makers Overlook in Sholazar Basin /way 79.8, 54.5

Once you are at the Maker Overlook entrance run through to the back heading east and find Magni Bronzebeard
Magni Bronzebeard will have you open 3 conduits by clicking on the buttons on the ground.
Now click on the teleporter in the middle.

This is when the scenario begins...
Run over and find Magni Bronzebeard by running forwards..
Kill 7x Invaders
Reactivate 4x [npc=119895].. by clicking on them
Defeat [npc=120486]
Speak to Magni Bronzebeard by running forward(again). click on him when you are ready to begin.
Last part of the Scenario will have us listen to Azeroth's Warning.
Click on the teleporter to leave the scenario where you will end up back in [zone=7502].. go speak to [npc=90417] to turn in the quest.

You will receive [item=151789] and are now one step closer to Argus & the 7.3 Patch

Any questions? This is how I did it.
https://youtu.be/nKmYPyKha2k
https://youtu.be/nKmYPyKha2k
https://youtu.be/nKmYPyKha2k