That is alot for 2 cents, I think you owe me more.
Anyways, I agree that the dark ones prison will have to be resealed completely and not just patched in order for the wheel to continue on. I am wondering how this will be done. It is stated many times that the creator bound the dark one in his prison. If this is true then wouldn't the creator have to rebind him. If thats the case we are out of luck because the creator does not take a dirrect hand in events.
I believe that it is also possible, if unlikely, that they will find some way to "break" the wheel, or maybe I should say "bend", that will end the cycle of the battle witht he Dark One and start a new story that will be repeated over and over again.
Either way I do not think Rand will die. I think just the voice in his head will die. If he dies it will be more like a Harry Potter death in which he dies but not really.