It should be separate. I can't get League Pass because it's not available through my cable company, but I would buy League Pass broadband if it were available. The NBA would make more money selling them separate anyway.The fact is the NBA has streamed its live games via the internet the past couple of seasons through NBA Broadband.
Its been included at no extra charge with the D* NBA League Pass subscription, but now it sounds like it'll become its own a la carte service.