The trends in intense Atlantic hurricanes are indeed downward, as your landfalling dataset points out. We know about the link that goes El Nino--> fewer hurricanes, but echoing Peter's previous message, do we know yet that climate change-->more El Ninos? the modeling results so far seem (to me) inconclusive.
As for future trends in TC's, there seems to be a tendency for models to suggest decreasing trends in TC's, though this too is inconclusive
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