I'm not sure about expediting applications, but I just received my AP approval notice in the mail today (sent 7/8/16) and I had requested to travel this week, so you may get it last minute like me.
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DACA TIMELINE (FIRST RENEWAL) NCS
App received
3-16-16
Bios
8-29-16 (walk-in--scheduled for 9/12)
EAD expired
9-22-16
Approved
9-21-16/Mailed
10-6-16/Received
10-12-16