They have always said later in the 2nd half. Where people get the 7/1 date just makes me laugh.
Most people are thinking q4.
And they did say that they would provide notice and additional information.
Now, what I have heard from some folks in corporate is that they are still planning for the change in q4 and that there will be details provided in the "near future." Also --just speculation -- but I would expect the annoucement to be tied to some other AAdvantage news and updates.