I would say no. But in 2-3 years time, things could change for NB. Lowell has better access and has been redeveloping longer than has NB.
Turn NB into a hipster haven like Portland.
In my opinion, New Bedford would not be well-served to hang their hopes on commuting possibilities to Boston. A cheap, urban experience with frequent commuter-rail service to Boston is a good sell for Lowell and Brockton, but New Bedford is not a Boston suburb (the way Lowell and Brockton have become urban suburbs of Boston). New Bedford should instead look to the small cities in New England that have achieved success de-coupled from Boston.
What are some of the things that successful, small, post-industrial cities in New England cities have done to thrive? Portsmouth, New Hampshire; Burlington, Vermont; Waterbury, Connecticut; Portland, Maine. That's who New Bedford should be emulating.
New Hotel Project Announced in Downtown New Bedford
A real estate developer with a history of success in downtown New Bedford is announcing plans to completely renovate a 46,600 square foot building located at 218-226 Union Street at projected cost of $10 million. The building, vacant for an extended period, at one time housed the offices of radio station WBSM on its first floor.
More: http://www.newbedfordguide.com/new-hotel-project-announced/2016/03/08
Elite Airway's headquarters are in Portland and they now provide service from PWM to Melbourne, Naples and Sarasota which has helped connect Maine with Florida. Southwest Airlines provides seasonal service to Orlando which leaves a void during the rest of the year. Elite should be a good fit for New Bedford, good luck!
The airport authority should be lobbying for a daily commuter flight to Newark or Philadelphia. I'm sure there are plenty of people in the area who travel frequently for work(I know several) who could fill 50 or so seats a day in each direction to avoid Logan and Providence. There's some surprisingly high disposable income in Marion and parts of South Dartmouth and Westport as well.