No confirmation yet from AA, but word on the AA forum is that there will be substantial changes to the AA program in 2016. See the Wiki here:
2016 AAdvantage Program Changes Formally Unannounced but Reliably Sourced
The one I find most interesting is adoption of the DL/UA RDM earning scheme, but with additional elite bonuses, including 120% for EXP. The question, of course, is will UA follow?