I have noticed that the eagles have rebuilt a nest in the same general area as their past two nests.. I have seen at least one eagle near the nest daily in the afternoon / early evening.. Is it possible that they have "re-nested" and may have another try at being parents??
You asked: "Is it possible that they have "re-nested" and may have another try at being parents?? "
While it is not unusual for the eagles to construct a second nest after losing the first, it is not likely they will be able to raise a second brood. They sometimes will lay another clutch of eggs if they lose the nest very early in the breeding season.
It takes about 5 months from when the eggs are laid until the eaglets are fully independent. Conditions in south Florida would not be favorable for such a second brood. The local population instinctively times the season so that prey is most abundant when the eaglets are growing rapidly-- the water is still cool enough so that fish are not hiding deeply, and other prey such as waterfowl, wading birds and small mammals are producing young.
Heat stress is less a problem for the eaglets in late winter and early spring. Normally the juveniles fly off and migrate to the north by mid-summer to find better foraging conditions, and the normal time for the adults to start a new breeding cycle is mid-to-late September.
With living organisms one cannot ever say "never," but "highly unlikely" seems to be an appropriate answer to your question.