I'm using NCL air for my June 30th cruise out of Rome.
We got information on the routing of the flight there yesterday (just under 45 days until flight date).
One thing to look for is you may get an email from the airline that they book you on. I received an email regarding a flight time change a few weeks ago that clued me in on which way they were sending me. And of course, they opted to NOT put me on the direct flight that was available at a time that would work well, haha.