According to A.P. as of 30 December 2004:
"U.S. Rep. Ander Crenshaw, R-Jacksonville, said he and U.S. Senator Bill Nelson, D-Fla., were notified by Navy Secretary Gordon England last week that the USS John F. Kennedy (CV-67), one of two remaining conventionally-powered aircraft carriers, could be decommissioned as the Pentagon attempts to save $60 billion over the next six years. In an appearance in Jacksonville in April 2004, England pledged to keep the Kennedy at Mayport Naval Station, northeast of Jacksonville, until 2018."
"Florida's top elected officials vowed Thursday to fight a proposal to mothball the USS John F. Kennedy, with one congressman saying that scrapping the Mayport-based aircraft carrier would be ``long on wrong-headedness.'' The Jacksonville Chamber of Commerce says Navy salaries bring about $2 billion a year to the region and the Navy has a $7 billion financial effect on the local economy."
USS Kitty Hawk (CV-63) is planned to decommission in 2009 (?) and be replaced by USS George H.W. Bush. When Kitty Hawk decommissions, she was to have been replaced by the JFK (I guess that's all changed, now?) as the Navy's forward-deployed Pacific Fleet carrier.