Looking in TCICS at the April 6th schedule change, it appears the A320''s will be removed from the Shuttle and several A319''s will be added. The A319''s which will be added will have a First Class cabin and will fly DCA-BOS. LGA-BOS and LGA-DCA will continue to fly with the current Shuttle A319''s offering only a Coach configuration. Looks like the A320''s will do low yeild flying with 150 coach seats. The routes I have found so far are: CLT-MCO, CLT-PHL, CLT-CUN, CLT-CZM, CLT-PUJ, CLT-SJU, PHL-BGI, PHL-BOS, PHL-CLT, PHL-SDQ, BOS-PHL.