I was thinking maybe JetBlue would have interest with BOS service and maybe FLL, or FLL and MCO. This would give JetBlue more leeway over at EWR to offer other services with it's slot pairs. For example, if a Boston based traveler that JetBlue is courting, is heading to Bristol Myers Squibb office in New Brunswick, arrival in TTN would mean about the same driving time to New Brunswick, as arrival in EWR.

Frontier has done well in TTN. It was a Denver based airline that essentially explored it out and realized it's potential. JetBlue missed out, but so did AirTran that dabbled in ABE and ACY. I suppose these carriers thought TTN was too primitive or overlooked it, but Frontier has proved it that it doesn't really matter.