Thancred would suggest sharing the news of your victory.
Requirements
This quest is available if you have completed the quest The Skyruin.
Starting the Quest
Talk to Thancred in Urqopacha to begin the quest.
Speak with Wuk Lamat
Teleport back to Worlar's Echo, then go to the quest icon and talk to Wuk Lamat. There will be a cutscene.
Speak with Wuk Lamat Again
Talk to Wuk Lamat to complete the quest.
Next Main Scenario Quest
After you complete the quest, talk to Erenville to accept the next quest: The Promise of Peace.