The strength and location of that high pressure system is going to play a huge role in where this goes ... keeping fingers crossed ...
You're watching the weather channel.
TWC is the E! Channel of weather. All drama and worst case scenario is definitely what is going to happen.
I prefer the data centric sources that don't need doom, gloom, and body counts to get ratings to pay their talent.
If you look at the spaghetti models vs what they were yesterday it's looking more and more like its drifting north, not affecting the Bahamas much but the 9/9 Eastern 7day for the Fantasy... sketchy on a lot of the predictions, could very easily get flipped into a western Caribbean cruise.
The eastern route basically plays chicken with Irma, DCL learned from Sandy and won't play chicken.
9/9 cruise and 9/8 should be good to go, but where they go is what isn't set in stone right now.
Btw, I'd be more worried about the wave that just came off of the African coast delaying your trip home, as well as Castaway Cay. (For 9/9 fantasy cruise)
https://www.cyclocane.com/irma-spaghetti-models/
Given what's up in the Atlantic right now, I wouldn't be shocked in any way if DCL isn't already preparing for 9/9 to become Western. The VI have a 50/50 shot with the current state of the Altantic, problem is there is gong to be 2 storms and the second looks to hit the Virgin Islands the same day at the Fantasy makes port there.
I'm already researching port adventures from past Cozumel/cayman/Jamaica cruises to be prepared.
Btw, if it happens I'll let you know the Rum Point catamaran excursion at Cayman is about the best excursion I've taken.