We saw Martell and Tyrell ships in the background when Daenerys was sailing off to Westeros, and either Dorne or Highgarden could be a good place for Daenerys' army to rest and gather more troops.

However with King's Landing in turmoil and Cersei's grasp on the Iron Throne tenuous at best, it could be an ideal time to seize the capital.

What's the game plan here, Mother of Dragons?