Originally Posted by
JPG3392
You would need to work with the airline that issued the award ticket. That airline can open additional award space on its own flights, but can only request, not force, its partners to do so. If you are not satisfied with the alternatives offered after a significant schedule change, you can receive a refund of your miles and fees and then start over.
Thanks for the confirmation.

Unfortunately, as suspected.
Does it follow that booking an award on AA itself would bypass these types of issues? Because an invol change would follow their broader policy on the topic, even allowing rebookings on itineraries without existing award space?