The crack in the koolaid still hasn't worn off.
AA hasn't given up scope beyond what is already out of the bag. Until you see an LOA or something from the major carrier, nothing will come to the regionals that isn't already a known possibility.
I don't work for AMR in any way, but airports are constantly trying to "modernize" in hope of new business. If anyone is at a regional and wants to leave, bigger airplanes are a kiss of death, those that want to stay will love it. Those who want to stay typically aren't the ones on the forums; they are home and very happy with things now and only interested in future opportunities within their place. Not a knock on anyone, just the dynamics as demonstrated across the boards.