Erenville would propose a course of action.
Requirements
This quest is available if you have completed the quest The Feat of Ice.
Starting the Quest
Talk to Erenville in Urqopacha to begin the quest.
Speak with Erenville
Teleport to Tuliyollal and use the Aetheryte to go to the For'ard Cabins. Talk to Erenville to proceed.
Speak with the Cabin Attendant
Go south and talk to the Cabin Attendant. There will be a cutscene.
Speak with Wuk Lamat
Talk to Wuk Lamat.
Speak with Wuk Lamat Again
Go north and use the Aethernet Shard to go to the Resplendent Quarter, and talk to Wuk Lamat. There will be a cutscene.
Speak with Alphinaud
Go north and talk to Alphinaud to complete the quest.
Next Main Scenario Quest
After you complete the quest, you will need to be at least level 94 to proceed to the next quest. After you reach level 94, talk to Alphinaud to accept the next quest: The Leap to Yak T'el. There will be a cutscene.