A number of people want to know where Kul Tiran and Zandalari are. We talked about it in the past about an upcoming Allied Race. We're not quite there in the story but they're very very close. In the events following the raid that's where this bond between our new allies and our factions will truly be forged and where we'll be able to recruit and bring the Kul Tiran and Zandalari formally into our factions.
And no, if you're worrying or wondering about this, You're not going to have to rep up with some new faction -- if you are Exalted with the Proudmoore Admiralty or Zandalari Empire and done the War Campaign, that's enough. You've played through the story, you've earned their alliance, they will come join your faction but that's not going to happen until after the raid.