I have heard from a reliable, high-ranking source within the FRJ world here that BOS should be safe. Much of the LGA flying didn't make sense with an FRJ - it could be done much easier (and quicker) with a CRJ, not to mention more capacity to offer DAL on those routes in/out of LGA. Whilst some of the stuff was fun, easy stuff, e.g. LGA-CHS, or LGA-CAE, the CRJ's speed can definitely save a decent chunk of time on the route.
However much of the BOS flying, ie BOS-PWM, BOS-BGR, is much more suited to the FRJ's slower speed + range. What I heard is that DAL compared the 2 ACA bases, and the FRJ makes much more sense in BOS, while the CRJ makes a lot of sense doing the LGA stuff.
Here's my fearless prediction for the FRJ future at ACA...
1. BOS will continue. However look for DAL to mix CMR and ASA into BOS as well. Some routes that always seem to be full, e.g. BOS-RDU or BOS-YHZ may be shifted to a CRJ. DAL seems to mix and match their RJ capacity much better than our other partner, United. The LGA closure was one display of that. I believe CMR is doing some BOS-DCA stuff, and I believe we'll only see more of them in the future
2. Did somebody say more FRJs? Yes, Dornier is imploding. However their are FRJs on the used market to be had. Look for ACA to gradually expand their FRJ fleet as we buy aircraft in 2's and 3's as they become available from smaller FRJ operators who are having some of the same problems we are with the Dorkjets. At least we are starting to take some initiative to seek out solutions to mx. problems. The more aircraft we can spread this cost over, the better. CVG is where I'd look for expansion, particularly on some of those short hops like EVV, TOL, DAY, etc... Look for DAL to relocate CMR a/c to longer stage lengths or to DFW.
3. Orlando. CHQ is having serious problems financing their ERJs for their DCI MCO hub. My big beef with CHQ is that they so lowballed everybody on the bidding for the DCI MCO hub that I seriously wonder how they can make $$$ on the routes at what they're charging DAL. There's just no way us, ASA, or CMR can compete with that. I believe we were next in line for the MCO hub. DAL is waiting for CHQ to resolve the situation, then look for somebody else to take over DCI in MCO.