FWIW, one of my FAs on Mon was very chatty and a bit of an avgeek. We were talking shop about AA at length and she mentioned the switch to move 777 maintenance to HAECO in HKG (I had seen this in Sept on TOBB). She then said there was a pending announcement "next month about new service to Asia and Europe". I asked her if this was beyond the recent DFW-ICN, ORD-DUS, and JFK-DUB additions and she said yes. She said that the move to use HAECO would mean new HKG service on AA metal and eluded to potential other new service as well. I asked about conflicts with CX flying to HKG. She didn't reply directly. She just repeated that she was "pretty sure" that AA would be announcing new HKG service soon. I don't think it adds up for them to fly there even as a tag along, but I don't work for AA so I thought I would throw it out there. She got a "thank you" cert for taking great care of me and making my flight fun, but its all just rumors from one of ~70K AA employees so who knows.