B&A is going electric eventually - it's a matter of when, not if. Far too important a corridor not to go electric. Double-tracks, at minimum, on the entire line again - probably triple-tracking anywhere we can get it if not full 4-tracks. Possibly something is going to be done about Palmer Junction as well, to eliminate the need to reverse direction on a trip Springfield - Amherst. That's less important, though.
I disagree with you on one point - while most of the 'Springfield Network' isn't yet a winning proposition (and maybe not for a while), NHV-HFD-SPG is clearly winning enough of a proposition for Amtrak to have a non-insignificant presence of service on that corridor. The MBTA could definitely move into that market and recoup the costs of doing so pretty easily, if only they had yards over there.
Oh sorry, I wasn't clear. The 495 Commuter Rail service that was proposed in the article that czsz posted isn't a winning proposition at all for the foreseeable future, in my view.
I totally agree with you about NHV-HFD-SPG needing commuter rail service. It seems to me that, once you institute that, the next step is to send trains up to Northampton and Amherst to connect to the colleges there. You got some of the best colleges in the country (in the world, in a couple cases) up there, and if I were the Mayor of Springfield, I'd be very interested in linking up with them economically. I bet the Mayor of Holyoke would also be interested in bringing commuter rail to the region; he's working very hard to revitalize that community.
Getting the B&A electrified would make SPG-WOR service more palatable and would eventually generate a market for SPR-WOR-BOS, I would think.
I actually think a modest Springfield commuter rail network is not a bad idea. Combine it with a modest RIDOT network and you can suddenly go a lot of places without a car and without a hugely expensive ticket.