Chapter 1 of the War of the Thorns event is now live and we have sent out an update (6.2.18392) that adds in the Burning of Teldrassil event guide. This can be found in the Events section under Battle for Azeroth (110-120) \ Burning of Teldrassil or linked in the Home section of the guide menu.
How To Update Your Guides:
Here are detailed instructions explaining how to update your guides:
Thank you!