Tampa's port might get more good news about its cruise business. One of the three cruise lines now sailing from Tampa could replace one of its ships with a newer vessel for the 2011-2012 winter season, port director Richard Wainio said. He told the members of the Tampa Port Authority's governing board Tuesday that he should have an update next month. Last month, Norwegian Cruise Line announced plans to bring its first ship to Tampa. The 2,240-passenger Norwegian Star will make Tampa its home port starting in October 2011.