hunter - i have no misgiving about GRRM or what he would or won't do....
but previously when a character has been killed it has been rather direct - explicit description and first person account.
jon's whereabouts and fate are currently the subject of hearsay and rumor only. not GRRM's way to kill a character.
was there any doubt about the deaths of - ned, drogo, viserys, renly, robb, catelyn, joffrey, oberyn, tywin, shae, ygritte, lyssa, etc.
others he is now being obtuse about - jon, the hound.
given his track record if he wanted them dead, they would be dead.