Here's the NCL press release about the Spirit and Dawn departure from New York, and the arrival of the Gem.
You should note that either the Dawn or Spirit, or both, could return to New York for the 2008 summer season. NCL hasn't posted the 2008 summer season yet. But it's a done deal that only the band new Gem will sailing from New York during the 2007-2008 winter season.
I guess it wouldn't hurt to briefly note the NCL 2007-2008 winter season itineraries.
sailing from New York with seven-day Florida and Bahamas cruises and four 10- and 11-day cruises to the Southern Caribbean in the winter; and seven-day cruises to Bermuda and the Bahamas in the summer.
sailing from Miami with seven-day Eastern Caribbean cruises for the winter.
sailing from New Orleans with seven-day Western Caribbean cruises.
Pearl and Jewel
sailing from Miami with alternating nine-day Southern Carribean and five-day Western Caribbean cruises.
sailing from Los Angeles with eight-day Mexican cruises.
sailing fourteen-day cruises around the southern tip of South America.
sailing from Charleston with seven-day Western Caribbean cruises.
Pride of Aloha, Pride of America, Pride of Hawaii and Sun
sailing from Honolulu with seven-day Hawaiian cruises; the Sun with ten and eleven-day Hawaiian cruises to Fanning Island.
Note: Both the Wind and Crown will have departed the NCL fleet by then.