FLL is a low margin leisure market. The two largest airlines there are Jetblue and formerly Spirit and neither one of them were likely making significant profit there, if any at all. I can see adding some capacity in there, but I don't think there is a massive desire to go in there more than to just add a few more flights feeding our hubs like we added in the LAX flight.

Also since the JB partnership people can just book on Jetblue and connect to us in of our hubs now anyway so its even less likely we really need to have much more of a presence there. Case in point is if you want to book a flight from FLL to HNL on the Jetblue app then every option is on United. Even from FLL to SMF which Jetblue serves but not directly, if you sort by duration or arrival time, the first 10 options it gives you to buy tickets are all United flights.

I can see getting more LGA gates or other high value airports, but not really FLL.