NWHL is still active and is holding their championship on March 19 at Tsongas Center in Lowell, Massachusetts. I read last November that it had cut salaries in half as income was not matching projections, but I've read nothing since.
I haven't gone to a NWHL game, but in December I finally made it to a CWHL game between Boston and Montreal. The Blades ended up being a very bad team this past season and it will be interesting to see what happens to the team as the NWHL Boston Pride has been the best team in that league's two seasons. I don't think two women's teams can survive in Boston and at the moment I think the NWHL Pride are the team in a better position.