Someone check my math...
There are over 300 trips in the April JFK bid packet. JFK flying will double by September. So 300 trips becomes 600 trips. At three crew per trip (1CA 1FO 1FA) this is 1800 lineholders reporting for trips in the month of September. At the "Comair Standard" ratio of one reserve for every two lineholders we will also have 1200 reserve windows starting in September. When you add lineholders starting trips and reserves starting windows you have roughly 3000 folks starting trips in JFK in September, or an average of 100 employees starting a trip each day.
If only half of them are commuting from CVG, that's still a full CRJ of employees trying to get to JFK every morning.
How many extra reserves will we need in JFK to cover the commuter clause calls this "Northeast Shift" invites?