I think you'll be okay. You'll probably be at sea when Fiona is in the area of Bermuda, which is Sunday the 5th. I assume you're at sea that day. Then it should move out. According to the Weather Channel
it's supposed to continue to weaken, so if anything, you'll probably have an altered arrival time in Bermuda on Monday.
2007 - Majesty of the Seas
2009 - Enchantment of the Seas
2010 - Freedom of the Seas