Runnen
Vyemm Raider
Gilneas and Lost Isles were dropped opportunities from the start. They're some of the better made zones in the game (phasing shit in Gilneas aside) and they were just throwaway content for the most part. They were making some quality stuff at the time with the mass Cata content creation, but decisions around some of the process and what to do with some of it was obviously mishandled. How much of that was due to cranking too much out at once though is unknown.
I'm expecting we'll revisit Gilneas and the Lost Isles or Kezan during the Worgen and Goblin Heritage Armor quest lines.