Patch 11.0.7 brings players to the Siren Isle, a mysterious new zone where flight is initially restricted. Players will encounter a debuff upon entering the zone, grounding all attempts to take to the skies. But don’t worry—there’s hope for flight later on!
No Flying at First: The “High Winds” Debuff
When you arrive on the Siren Isles, you’ll notice flight is disabled due to the 
High Winds debuff. This powerful effect restricts flight, grounding players as they explore the zone’s new challenges and quests.
Unlocking Flight Later: “Wings of the Siren”
Datamined information suggests that the 
Wings of the Siren spell might eventually allow flight on the Siren Isle. This spell, potentially connected to the powerful Cyrce’s Circle will allow us to control the winds at some point and fly in the new zone.