considering the EU authors originally wanted to kill luke in NJO but GL forbid is example enough that he prob wouldnt die ne time soon. (Poor CHewie was second choice). Mind you if they did kill Luke i would of been pissed and probably wouldnt of read any of the NJO
We'll have to wait till dark nest to see what happens.
I'v never known when luke and Mara got married is that in any of the previuse books