The story of World of Warcraft: The War Within is far from over. Aside from the Siren Isle update, Season 2 is expected to start later on in 2025 which will provide all sorts of new endgame content and the next chapter of this current expansion. That said, there are plenty of new story quests that are part of Patch 11.0.7 that will help set the scene for Patch 11.1, which will involve the capital city of the Goblins, Undermine. There is also a series of quests that help bring the tragic tale of Dalaran's destruction to a close, but that won't be available right away.