I don't disagree with the desire to know what's what. To actually know what the cruise line is thinking and the process they are going through would help a lot towards calming nerves, but as you have stated, that's not what typically happens. *sigh*
My point is single in that until NCL officially announces what they're doing about our disembarkation port (currently Haifa), there's nothing we can do about planning our trip home unless you want to purchase a refundable ticket from all possible destinations - Rome, Athens, Istanbul, Cyprus, etc, to cover all bases. They may cancel the entire trip or change the itinerary, but until they do (which may be unfortunately a wait and see on their part too), we are all pretty much stuck.
Reading posts about what someone who heard from someone else who posted on another thread (etc) said is raising anxiety of those who just want to hear real honest to goodness actual facts so that they can respond appropriately... and those actual facts will only come from an official cruise line announcement whenever they choose to do so. The best planning we can do right now is to keep calm, consider scenarios (and mine or yours may respectfully differ from anyone else's) and carry on knowing that no amount of angst will change the outcome.
Once the official announcement is made, we absolutely do want to have any tips, advice, and assistance that the well seasoned travelers in this forum can offer.
Cheers and be safe.