Fujin - NPC
Reiko - Not in the game at all

With Reiko, I believe the Shao Kahn armor thing is finally going to play out.

With Fujin as I said in another thread, Raiden is going to finally pass the torch to him as originally intended in MK4.

So yes to both of them being in:)

I believe that Havik, Reiko, Rain and Fujin will all be playable

Add Cyrax/Sektor or Kabal/Nightwolf to that and it will greatly improve the roster in terms of diversity.