HIGHLY disagree. If anything JetBlue will grow BOTH as much as possible.

JB+NK won't have a fortress hub in FLL, but it will at least smell like one. They will maximize that as much as possible. They will also use their local name recognition to grow MIA as much as possible, if it makes economic sense to do so, which I suspect it will.

It would be similar to it's approach in NYC. They are at all times actively seeking more slots/gates at LGA/JFK/EWR.