You never know... watch the aerial pics on the property appraisers website... when the neighborhood starts to fill and develop, get a permit and start heaping in the clean fill. If you fill high enough, early enough... you will have a potentially valuable building lot... if you wait, you will have the neighborhood retention pond... I see lakes for sale all the time, the ones that are dry half the year could offer boating the other half.
AFAIAC, there are no areas left in FL that are safe from development... it's a matter of time until I have to move.