Looks like AA is accelerating the arrival of the E-175s to Envoy. They are delivering more per month than originally anticipated. Revenue service begins in Febuary if I remember correctly.
Also the CRJ-700s look like they are staying, and word is that the 145s sent to TSA & Xjet in 2014 will be returning as well.
Another nugget of information: 360+ pilots will flow to AA in 2016. That is almost every Captain that will flow who will be gone this time next year.