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It's really hard to know at this early date. Your TA gave you as solid a report as is likely - they probably do want to see what the demand is before committing.
The good part is that there are lots of shuttle companies serving the cruise trade, so even if DCL decides to not offer transfers to FLL, it won't be hard to make other arrangements at competitive rates (in the range of $15 per person one-way if you have a party of 5).
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