Looks like they are being returned to thrill lessors, after doing some research, it looks like they were traded in by Singapore airlines for some 777's back in 2003, Boeing leased them to Emirates on 2004 on a 9 year leave to cover the delayed 777 frames they were waiting for from Boeing, they are being retured at the end of the month, a new user is yet to be found for them. My bet Is they will be salvaged off.