My hopes and wishes for KH3 ending:
Sora, Riku, Kairi, Lea/Axel, Saix/Isa(Yes, I like the Isa persona), Roxas, Xion, Namine, Terra, Ventus and Aqua ALL survive and have a happy ending to be together again, they, Mickey, Donald and Goofy return to their worlds.
Lea, Isa, Roxas, Xion and Namine moving to either Radiant Garden or Twilight Town to rebuild their lives.
Aqua, Ven and Terra to rebuild Castle Oblivion back into it's former glory-Land of Departure, similiar to how Leon and the others are rebuilding Radiant Garden.
Kairi deciding to stay with Sora and Riku on Destiny Islands and Sora and Kairi end up together.
Now, for my worst fears and horrible expectations that I don't want to happen:
Kairi, Xion, Namine, Lea, Isa, Ven, Terra and Riku all end up dead in some ways during the final battle, Sora goes missing and leaves on an adventure alone, Mickey, Donald and Goofy return home heartbroken, Aqua gives up her lives and decides to remain in the Realm of Darkness.
Or just having most of my favorites-namely whom I've mentioned-die and I have to wait for KH4 for another ten years to see what happens next.
I also have a feeling that Terra will end up sacrificing himself and die in KH3, and who knows what will happen to Ven due to him having been in the Previous Keyblade War.