Actually heard an interesting theory the other day from a Captain regarding future 190 bases I hadn't heard before. With JB building Boston as much as it can for eventual slots, right now BOS is the major 190 base and JFK is shrinking.

When the airport becomes slotted, we'll have to cut some flying out of BOS... and that excess is where the 190's will come from to open a FLL or DCA base and not NY so that JFK 190 ops can recover quicker during irops or last minute sick calls then deadheading someone in from BOS or FLL.

In the end, BOS will stay the biggest, then small bases in FLL, MCO, and JFK.

Again, just an interesting theory and one I hadn't heard before.