That doesn't jive with a recent flight ops / crew resources update. Said update stated they are planning to move MD88 ops to JFK/EWR and move 717/320/737 ops from JFK/EWR to LGA to backfill. Seems like a much cheaper way to resolve the issue rather than close a category and start a cascade of displacements. This is supposedly temporary until the 88/90 fleet is equipped with GPS.

I'm sure the situation is dynamic, but I'd place bets on information from the horse's mouth rather than schoolhouse rumors.