GE is US's largest aircraft supplier. US had an order for up to 400 Airbus planes that it placed in 1997. That order was delayed and many planes were cancelled during the first trip through Ch11, and the remainder of the narrow-body deliveries have been cancelled by now. US's only surviving order is for additional A330 aircraft, most if not all of which have been converted into an order for A330-200 aircraft, designed to complement the A330-300's that are in current use and to replace the aging 767-200's, most of which US received in fulfillment of PI's original order for them in the late 1980's.
As martin33 said, the aircraft will all be coming from US. US owns a very large portion of its Boeing fleet. On the other hand, they own very little of their Airbus fleet. I don't believe that any lessors would want the Boeings back, so would it be safe to assume that mostly Airbus aircraft will be returned? If so, returning 71 planes will put a huge damper on the number of Airbus aircraft the new airline will fly. Will we be seeing the Boeings around for a lot longer than we expected?