Wonder how much of a time skip will pass if the protagonist's offspring will be attending school (assuming it's primary)? Maybe he'll be an established figure in the island's political landscape by then. As for other children he might have in the future with other women, Abby, Betty and Tristy (perhaps Tiffany the assistant of the guy in the ship) are highly potential candidates (Tristy even more so, if you chose to finish inside her and told her to not listen to her older sister). Would be interesting to see who might be the next ladies in line.