Had an in depth conversation with an Envoy chief trainer earlier this year while I was catching a ride on Envoy metal early one morning.
It is consistent with what has been stated.
1. Envoy will continue to take delivery of 175s to replace all of the CRJs and some of the 140/145s.
2. The CRJs all go to PSA. PSA will remain all CRJs.
3. Piedmont will take as many 145s as they can handle. They will get rid of all their Dashes.
4. Envoy will replace the 145s where 175s make sense. Some routes are too thin to support 175s.
5. This will take until the end of 2018 to all take place.
6. The intent (at least for now) is for all 3 W.O.s to be operated as separate entities.
7. AA would like all 3 to grow, taking on more RJs routes served by other regionals.
Of course things can change, but it made sense, and he was certainly in the know.