I would love, love, love for Sabo to survive through this. As much as I miss the crew ((It's flashback time. They have to be right around the corner after this, yes? >.>)), he is growing on me. And I agree with what you said in your last post that having him die so shortly after we've dealt with Ace's death would be a bit much, so I don't think he will. ...But Oda always surprises me, so I'll try not to get my hopes up.

On the other hand, if I'm looking at this for how it would effect the plot ((Not including the sneak peaks of Dragon's AWESOME))... it would just be really awesome if Sabo were alive. If he's still stuck with the Nobles, Luffy runs a high chance of running into him again somewhere down the line.