The time to command has come down drastically for those with the experience. I believe the direct entry commands have dried up? Time will depend on the other 500 pilots more senior than you, whether thay have the hours required, if they bid for the 737 from mainline and of course size of expansion. All things im sure you know anyway.
Of course the white gloves and handlebar moustaches will then have to decide if you are made of the 'right stuff'.
Whatever the time to command Im pretty sure the answer will be in single figures. Anyone else care to speculate?
MAX