What ending do I want.

I think Wings of Liberty will end with the collapse of the Dominion. Raynor will try extremely hard to redeem Kerrigan (un-infest her), and will at one point chose chasing her to try and redeem her instead of fighting for the cause the Raynor's Raiders were made for: to end Mengsk's tyranical rule. So he'll confront Kerrigan, have the chance to redeem her, but discover that the Kerrigan he had loved for so long no longer exists. He can't save her: she died a long time ago. He trys and fails to kill her, and barely escapes Char (assuming that's where the confrontation takes place).

He comes to the conclusion that the struggle with Kerrigan is the thing of the past - his present conflict is against Mengsk. He ends the dominion rule, but I doubt he becomes the leader of the new government. He probably maintains Raynor's Raiders and begins his mad hunt to finally kill Kerrigan.

Zeratul, Duran, and the Xel'Naga fit somewhere in there. Really the Xel'Naga story will only be hinted at now, and will resolve throughout Heart of the Swarm and the Protoss expansion.

That's how I think it'll go down.

 

I think Wings of Liberty will end with a top character death followed by the fall of the Dominion. Kerrigan will ramain the queen of blades, it is way to soon to "un infest" her

 

I'm willing to bet all my minerals that Tychus or Horner dies.

And the scene of Valerian offering Jimmy something, I'm getting a feeling that Raynor's rejoining the Dominion.

 

I think Valerian wants peace with Raynor. But, regardless I think the Dominion will fall and the Xel Naga will reappear at the end of the game. Kerrigan likely to die or become uninfested. Raynor will hook up with the doctor girl as seen in their make out sesh in Ghosts of the past.