I am on one of this year's NYC cruises, and with less than 5 months to go until my cruise (and 4 months until the first of these cruises takes place) there is still no word from Disney how they're going to be handling the fast passes, if we will be able to book FP+ in advance, etc. The last time we contacted them it was a simple "still working it out, stay tuned".
I personally don't mind all that much as the day we debark the cruise we are flying straight back down to WDW for a week, but on the cruise page on facebook there's been a lot of confusion over what's going on and Disney doesn't seem to be answering anyone's questions